PROTAC Linkers

Cat. No.	Product Name	Effect	Purity

• HY-140272

  DBCO-PEG4-NHS ester
  DBCO-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-40171

  NH2-C2-NH-Boc
  NH2-C2-NH-Boc (PROTAC Linker 22) is a alkyl chain-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W008574

  TGN-020		99.52%
  TGN-020 is a selective Aquaporin 4 (AQP4) inhibitor with an IC50 of 3.1 μM[1][2]. TGN-020 is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[3].TGN-020 alleviates edema and inhibits glial scar formation after spinal cord compression injury in rats[4].

• HY-118411

  5-Ethynyl-2'-deoxyuridine		99.78%
  5-Ethynyl-2'-deoxyuridine (EdU), a thymidine analogue, is incorporated into cellular DNA during DNA replication and the subsequent reaction of EdU with a fluorescent azide in a “Click” reaction. EdU staining is a fast, sensitive and reproducible method to study cell proliferation[1]. 5-Ethynyl-2'-deoxyuridine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2]. 5-Ethynyl-2'-deoxyuridine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140346A

  L-Azidohomoalanine hydrochloride
  L-Azidohomoalanine hydrochloride is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. L-Azidohomoalanine (hydrochloride) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-168912

  3,9-Diazaspiro[5.5]undecane-3-carboxylic acid
  3,9-Diazaspiro[5.5]undecane-3-carboxylic acid is the linker that can be used for synthesis of PROTAC c-Met degrader-3 (HY-168910)[1].

• HY-170825

  (trans-4-Ethynylcyclohexyl)methyl methanesulfonate
  (trans-4-Ethynylcyclohexyl)methyl methanesulfonate is the linker that can be used for synthesis of PROTAC degrader SMD-3236 (HY-170824)[1].

• HY-W881439

  1-(1,1-Dimethylethyl) tridecanedioate
  1-(1,1-Dimethylethyl) tridecanedioate is a PROTAC Linker and can be used for PROTAC synthesis, such as FF2039 (HY-172159)[1].

• HY-120430

  HO-PEG14-OH
  HO-PEG14-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141161A

  (S,E)-TCO2-PEG8-acid
  (S)-TCO-PEG8-acid is a click chemistry PEG linker with a terminal carboxylic acid(COOH) group. The terminal carboxylic acid is reactive with primary amine groups to form a stable amide bond. (S)-TCO-PEG8-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. (S)-TCO-PEG8-acid is longer than (S)-TCO-PEG3-acid[1].

• HY-133321

  N3-PEG24-Hydrazide
  N3-PEG24-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N3-PEG24-Hydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140722

  Mal-PEG-Succinimidyl Valerate (MW 20000)
  Mal-PEG-Succinimidyl Valerate (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040239

  m-PEG6-CH2CH2COOH
  m-PEG6-CH2CH2COOH is a PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130524

  Amino-PEG4-CH2COOH
  Amino-PEG4-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Amino-PEG4-CH2COOH is also a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-130186

  Methyl propionate-PEG12
  Methyl propionate-PEG12 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138500

  Mal-PEG12-NH-Boc
  Mal-PEG12-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133493

  Folate-PEG3-NHS ester
  Folate-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140784

  Azido-PEG16-Boc
  Azido-PEG16-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG16-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138380

  Mal-PEG4-C2-NH2 TFA		98.60%
  Mal-PEG4-C2-NH2 TFA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126958

  Biotin-PEG2-acid
  Biotin-PEG2-acid is a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Biotin-PEG2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130167

  Fmoc-NH-PEG9-CH2CH2COOH
  Fmoc-NH-PEG9-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG9-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135820

  m-PEG12-acid
  m-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W072752

  endo-BCN-PEG2-NH2
  endo-BCN-PEG2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG2-NH2 contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140408

  Bis-aminooxy-PEG2
  Bis-aminooxy-PEG2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135938

  NH2-PEG5-C1-Boc
  NH2-PEG5-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138331

  Fmoc-N-amido-PEG6-amine
  Fmoc-N-amido-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130695

  N-(Amino-PEG5)-N-bis(PEG4-acid)		99.52%
  N-(Amino-PEG5)-N-bis(PEG4-acid) is a PEG-based PROTAC linker used in the synthesis of PROTACs. N-(Amino-PEG5)-N-bis(PEG4-acid) contains an amino group with two terminal carboxylic acids[1].

• HY-143837

  Acid-PEG12-t-butyl ester
  Acid-PEG12-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140434

  t-Boc-Aminooxy-PEG5-azide
  t-Boc-Aminooxy-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. t-Boc-Aminooxy-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140516

  NH-bis(PEG4-acid)
  NH-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140770

  Azido-PEG3-aminoacetic acid-NHS ester
  Azido-PEG3-aminoacetic acid-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-aminoacetic acid-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140756

  Azido-PEG1-NHS ester
  Azido-PEG1-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141368

  Bromo-PEG8-Boc
  Bromo-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140324

  Tetraethyl octane-1,8-diylbis(phosphonate)
  Tetraethyl octane-1,8-diylbis(phosphonate) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140852

  Azido-PEG3-methyl ester
  Azido-PEG3-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-methyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133279

  m-PEG11-Br
  m-PEG11-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168309

  7-(Piperidin-4-ylmethyl)-2,7-diazaspiro[3.5]nonane
  7-(Piperidin-4-ylmethyl)-2,7-diazaspiro[3.5]nonane is the PROTAC linker of FHD-609 (HY-153367)[1].

• HY-132859

  Bromo-C10-OBn	Chemical
  Bromo-C10-OBn is a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140529

  N-Mal-N-bis(PEG2-acid)
  N-Mal-N-bis(PEG2-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140525

  N-(Azido-PEG2)-N-Boc-PEG4-acid
  N-(Azido-PEG2)-N-Boc-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Boc-PEG4-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130690

  Propargyl-PEG1-SS-PEG1-C2-Boc
  Propargyl-PEG1-SS-PEG1-C2-Boc is a Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG1-SS-PEG1-C2-Boc is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG1-SS-PEG1-C2-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138354

  Pyrroline-5-carboxylate
  Pyrroline-5-carboxylate is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140750

  Benzyloxy carbonyl-PEG3-C2-Boc
  Benzyloxy carbonyl-PEG3-C2-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140450

  Diketone-PEG12-DBCO
  Diketone-PEG12-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Diketone-PEG12-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140769

  Azido-PEG5-succinimidyl carbonate
  Azido-PEG5-succinimidyl carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-succinimidyl carbonate is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134710

  Benzyl-PEG24-alcohol
  Benzyl-PEG24-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133354

  Mal-PEG11-mal
  Mal-PEG11-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130897

  Boc-NH-PEG11-CH2CH2N3
  Boc-NH-PEG11-CH2CH2N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG11-CH2CH2N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133394

  Azido-PEG7-azide
  Azido-PEG7-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140179

  Amino-PEG16-acid
  Amino-PEG16-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140387

  Ms-PEG12-Boc
  Ms-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132012

  Benzyl-PEG9-acid
  Benzyl-PEG9-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133070

  Tos-PEG5-C2-Boc
  Tos-PEG5-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140204

  Amino-PEG9-alcohol
  Amino-PEG9-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126974

  Propargyl-PEG3-NHS ester
  Propargyl-PEG3-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG3-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG3-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140156

  Methylamino-PEG4-Boc
  Methylamino-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130163

  Bromo-PEG1-CH2COOH
  Bromo-PEG1-CH2COOH is a PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130485

  Bromo-PEG2-C2-azide
  Bromo-PEG2-C2-azide is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Bromo-PEG2-C2-azide is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG2-C2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133345

  m-PEG7-Hydrazide
  m-PEG7-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143844

  Bromo-PEG7-amine
  Bromo-PEG7-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130474

  Azido-PEG6-NHS ester
  Azido-PEG6-NHS ester is a cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG6-NHS ester is also a PEG- and Alkyl/ether based PROTAC linker that can be used in the synthesis of PROTACs[2]. Azido-PEG6-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138522

  NHS-bis-PEG2-amide-Mal
  NHS-bis-PEG2-amide-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140337

  Ph-Bis(C1-N-(C2-NH-Boc)2)
  Ph-Bis(C1-N-(C2-NH-Boc)2) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140984

  m-PEG24-Mal
  m-PEG24-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140775

  Azido-PEG1-Boc
  Azido-PEG1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126908

  Tetrazine-Ph-NHS ester
  Tetrazine-Ph-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-NHS ester is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-150910

  Brigatinib C		99.72%
  Brigatinib C is a linker, as a part of PROTAC Linker to target HJM-561 (HY-156698).

• HY-W096096

  Tetraethylene glycol monohexadecyl ether
  Tetraethylene glycol monohexadecyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-147205C

  Biotin-PEG-OH (MW 5000)
  Biotin-PEG-OH (MW 5000) is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1].

• HY-140150

  Azido-PEG3-Val-Cit-PAB-PNP		99.09%
  Azido-PEG3-Val-Cit-PAB-PNP is a cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG3-Val-Cit-PAB-PNP is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2]. Azido-PEG3-Val-Cit-PAB-PNP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140215

  Azido-PEG6-amine
  Azido-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-amine is also a non-cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2]. Azido-PEG6-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141340

  S-acetyl-PEG3-alcohol
  S-acetyl-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132117

  Bromo-PEG12-t-butyl ester
  Bromo-PEG12-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133399

  Alkyne-PEG4-maleimide
  Alkyne-PEG4-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Alkyne-PEG4-maleimide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-129774

  Phthalimide-PEG4-MPDM-OH
  Phthalimide-PEG4-MPDM-OH is a PROTAC linker, which refers to the PEGs composition. Phthalimide-PEG4-MPDM-OH can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-138497

  F-PEG2-S-COOH
  F-PEG2-S-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130534

  Tos-PEG2-Boc
  Tos-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140580

  Bis(m-PEG4)-N-OH
  Bis(m-PEG4)-N-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-42619

  Amino-PEG4-C1-Boc
  Amino-PEG4-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140281

  DBCO-C-PEG1
  DBCO-C-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-C-PEG1 is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140550

  NH-bis(C2-PEG1-azide)
  NH-bis(C2-PEG1-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. NH-bis(C2-PEG1-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W040134

  Mal-amido-PEG4-NHS ester
  Mal-amido-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140162

  Hydroxy-PEG4-methylamine
  Hydroxy-PEG4-methylamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-49453

  Fmoc-Gly-Gly-(D-Phe)-Gly-CH2-O-CH2-Cbz
  Fmoc-Gly-Gly-(D-Phe)-Gly-CH2-O-CH2-Cbz is a PROTAC linker and a maleimide-GGFG peptide linker. Fmoc-Gly-Gly-(D-Phe)-Gly-CH2-O-CH2-Cbz can be used in the synthesis of the Deruxtecan[1].

• HY-130866

  Mal-NH-PEG14-CH2CH2COOPFP ester
  Mal-NH-PEG14-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-114661

  m-PEG4-Tos
  m-PEG4-Tos is a derivative of silybin ethers, extracted from patent CN105037337A (compound III-b). m-PEG4-Tos is a PEG-based PROTAC linker can be used in the synthesis of Silymarin (HY-W043277)[1].

• HY-159575

  COOEt-cyclohexane-C-Ph-pyrimidine-diazabicyclo
  COOEt-cyclohexane-C-Ph-pyrimidine-diazabicyclo is a PROTAC linker. COOEt-cyclohexane-C-Ph-pyrimidine-diazabicyclo can be used in the synthesis of PROTAC SMARCA2/4-degrader-5 (HY-159456)[1].

• HY-140197

  Amino-PEG12-Boc
  Amino-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133395

  Azido-PEG9-azide
  Azido-PEG9-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140318

  DBCO-mPEG (MW 2kDa)
  DBCO-mPEG (MW 2kDa) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-mPEG (MW 2kDa) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-132049

  Benzyl-PEG7-azide
  Benzyl-PEG7-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzyl-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141099

  Di(N-succinimidyl)adipate
  Di(N-succinimidyl)adipate is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141323

  C2-Bis-phosphoramidic acid diethyl ester
  C2-Bis-phosphoramidic acid diethyl ester is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130908

  11-Maleimidoundecanoic acid		99.92%
  11-Maleimidoundecanoic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133051

  Hydroxy-PEG5-acid
  Hydroxy-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096141

  Propargyl-PEG3-1-o-(b-cyanoethyl-N,N-diisopropyl)phosphoramidite
  Propargyl-PEG3-1-o-b-cyanoethyl-NN-diisopropylphosphoramidite is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-1-o-(b-cyanoethyl-N,N-diisopropyl)phosphoramidite is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140593

  m-PEG3-S-PEG2-OH
  m-PEG3-S-PEG2-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141309

  m-PEG4-(CH2)6-Phosphonic acid
  m-PEG4-(CH2)6-Phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140340

  Fmoc-NH-pentanoic acid-NHS-SO3Na
  Fmoc-NH-pentanoic acid-NHS-SO3Na is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W125504

  AEEA-AEEA
  AEEA-AEEA is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). AEEA-AEEA is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-141117

  Boc-NH-PEG2-C2-NHS ester
  Boc-NH-PEG2-C2-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132097

  Bromo-PEG4-PFP ester
  Bromo-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140235

  Boc-NH-PEG15-NH2
  Boc-NH-PEG15-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135142

  Br-PEG3-OH		98.81%
  Br-PEG3-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040236

  m-PEG8-Amine
  m-PEG8-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-141186A

  (R)-TCO-OH
  (R)-TCO-OH is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. (R)-TCO-OH is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-140496

  DNP-PEG12-acid
  DNP-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140589

  Acid-PEG4-S-PEG4-acid
  Acid-PEG4-S-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140848

  Azide-PEG3-L-alanine-Fmoc
  Azide-PEG3-L-alanine-Fmoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG3-L-alanine-Fmoc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134752

  Benzyl-PEG9-Boc
  Benzyl-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141195

  N-Boc-PEG24-alcohol
  N-Boc-PEG24-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140874

  Azido-PEG4-Amido-tri-(t-butoxycarbonylethoxymethyl)-methane
  Azido-PEG4-Amido-tri-(t-butoxycarbonylethoxymethyl)-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-Amido-tri-(t-butoxycarbonylethoxymethyl)-methane is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130870

  Fmoc-NH-PEG11-CH2CH2COOH		99.73%
  Fmoc-NH-PEG11-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140817

  Azido-PEG4-hydrazide-Boc
  Azido-PEG4-hydrazide-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-hydrazide-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-124323

  m-PEG4-NHS ester
  m-PEG4-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140747

  BnO-PEG1-CH2CO2tBu
  BnO-PEG1-CH2CO2tBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134512

  Aminooxy-PEG3-C2-thiol
  Aminooxy-PEG3-C2-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140651

  Amine-PEG-thiol (MW 2000)
  Amine-PEG-thiol (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141317

  S-acetyl-PEG3-phosphonic acid ethyl ester
  S-acetyl-PEG3-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-118764

  Propargyl-PEG2-acid
  Propargyl-PEG2-acid is a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Propargyl-PEG2-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130876

  HS-PEG10-CH2CH2COOH
  HS-PEG10-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138469

  NH2-PEG3-C6-Cl
  NH2-PEG3-C6-Cl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140933

  Biotin-PEG12-hydrazide
  Biotin-PEG12-hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141178

  TCO-PEG3-amine
  TCO-PEG3-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140491

  Cbz-N-amido-PEG20-acid
  Cbz-N-amido-PEG20-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140149

  Azido-PEG4-Val-Cit-PAB-OH
  Azido-PEG4-Val-Cit-PAB-OH is a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG4-Val-Cit-PAB-OH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2]. Azido-PEG4-Val-Cit-PAB-OH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141174

  TCO-PEG12-TFP ester
  TCO-PEG12-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138352

  THP-PEG4-Boc
  THP-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140695

  m-PEG-Aminooxy (MW 2000)
  m-PEG-Aminooxy (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140501

  m-PEG11-acid
  m-PEG11-acid is a non-cleavable 11 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. m-PEG11-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-156388

  SCO-PEG8-COOH
  SCO-PEG8-COOH is a PROTAC linker and belongs to the PEG class. SCO-PEG8-COOH contains SCO and COOH that can be covalently combined with amino groups, respectively. SCO is often used to react with amino acid residues of proteins or peptides, particularly lysine.

• HY-141181

  TCO-PEG8-amine
  TCO-PEG8-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W904851

  Boc-Piperidine-piperazine-Cbz
  Boc-Piperidine-piperazine-Cbz is a PROTAC linker that can be used in the synthesis of ZLC491 (HY-168162)[1].

• HY-140642

  Aminooxy-PEG-OH (MW 2000)
  Aminooxy-PEG-OH (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141122

  Boc-PEG4-C2-NHS ester
  Boc-PEG4-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120702

  N-Boc-PEG5-bromide
  N-Boc-PEG5-bromide is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG5-bromide is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-W006445

  N-Boc-PEG2-bromide
  N-Boc-PEG2-bromide is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG2-bromide is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-129622A

  NH2-PEG5-C6-Cl hydrochloride
  NH2-PEG5-C6-Cl hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120724

  HO-PEG15-OH
  HO-PEG15-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W009787

  1-Bromo-6-chlorohexane	Chemical
  1-Bromo-6-chlorohexane is a PROTAC linker can be used in the synthesis of PROTACs.

• HY-133509

  DBCO-C2-SulfoNHS ester
  DBCO-C2-SulfoNHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-C2-SulfoNHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140302

  DBCO-PEG5-DBCO		98.00%
  DBCO-PEG5-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG5-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-135917

  Propargyl-PEG6-SH
  Propargyl-PEG6-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG6-SH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138386

  endo-BCN-PEG12-NH2 hydrochloride
  endo-BCN-PEG12-NH2 hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG12-NH2 (hydrochloride) is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-Y0530

  Azetidine-3-carboxylic acid
  Azetidine-3-carboxylic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azetidine-3-carboxylic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2

• HY-132052

  Benzyl-PEG12-alcohol
  Benzyl-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140652

  Amine-PEG-thiol (MW 3400)
  Amine-PEG-thiol (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130165

  Tr-PEG8-OH
  Tr-PEG8-OH is a non-cleavable 8 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Tr-PEG8-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130283

  Methyltetrazine-Ph-NHS ester
  Methyltetrazine-Ph-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-Ph-NHS ester is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-140957

  Mal-PEG12-DSPE
  Mal-PEG12-DSPE is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141139

  1-(Isopropylthio)-2,3,4,6-tetra-o-Ac-beta-D-glucosylpyranose
  1-(Isopropylthio)-2,3,4,6-tetra-o-Ac-beta-D-glucosylpyranose is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140854

  Azido-PEG4-(CH2)3-methyl ester
  Azido-PEG4-(CH2)3-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-(CH2)3-methyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133303

  HO-PEG12-CH2COOH
  HO-PEG12-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141301

  Bromo-PEG5-phosphonic acid diethyl ester
  Bromo-PEG5-phosphonic acid diethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138385

  MS-PEG5-THP
  MS-PEG5-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-124011

  m-PEG3-aldehyde
  m-PEG3-aldehyde is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141002

  Bis-Mal-Lysine-PEG4-TFP ester
  Bis-Mal-Lysine-PEG4-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140746

  Benzyloxy carbonyl-PEG3-NHS ester
  Benzyloxy carbonyl-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140766

  Azido-PEG5-CH2CO2-NHS
  Azido-PEG5-CH2CO2-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-CH2CO2-NHS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141399

  m-PEG10-T-Butyl ester
  m-PEG10-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133393

  Azido-PEG6-azide
  Azido-PEG6-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130536

  Br-PEG4-CH2-Boc
  Br-PEG4-CH2-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W190969

  Br-PEG6-CH2COOtBu
  Br-PEG6-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141298

  Bromo-PEG5-phosphonic acid
  Bromo-PEG5-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141350

  S-acetyl-PEG4-propargyl
  S-acetyl-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141367

  Bromo-PEG6-Boc
  Bromo-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116924

  1,3-Bis-aminooxy propane
  1,3-Bis-aminooxy propane is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141302

  Carboxy-PEG4-phosphonic acid
  Carboxy-PEG4-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116427

  Propargyl-PEG4-thiol
  Propargyl-PEG4-thiol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG4-thiol is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG4-thiol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-40144

  Azetidin-3-ol hydrochloride
  Azetidin-3-ol hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azetidin-3-ol hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthes PROTAC.

• HY-138393

  Benzyl-PEG6-acid
  Benzyl-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140481

  Acid-PEG5-C2-Boc
  Acid-PEG5-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134698

  THP-PEG9-THP
  THP-PEG9-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133049

  Propargyl-PEG3-phosphonic acid
  Propargyl-PEG3-phosphonic acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-phosphonic acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130328

  NH-bis-PEG2
  NH-bis-PEG2 is a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). NH-bis-PEG2 is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-159684

  3,8-Diazabicyclo[3.2.1]octane-pyrimidine-piperidine-cyclohexene-Bpin
  3,8-Diazabicyclo[3.2.1]octane-pyrimidine-piperidine-cyclohexene-Bpin is a PROTAC linker. 3,8-Diazabicyclo[3.2.1]octane-pyrimidine-piperidine-cyclohexene-Bpin can be used in the synthesis PROTAC SMARCA2/4-degrader-30 (HY-162748)[1].

• HY-126918

  THP-PEG6-OH
  THP-PEG6-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. THP-PEG6-OH is also a non-cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-140365

  Tos-PEG13-Boc
  Tos-PEG13-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140537

  N-(Boc-PEG5)-N-bis(PEG4-acid)
  N-(Boc-PEG5)-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140367

  Bis-Tos-PEG6
  Bis-Tos-PEG6 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138383

  CHO-C-PEG2-C-CHO
  CHO-C-PEG2-C-CHO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138449

  m-PEG6-Boc
  m-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133366

  DBCO-NHCO-PEG2-amine
  DBCO-NHCO-PEG2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG2-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141038

  N-(m-PEG4)-N'-(Acid-PEG3)-benzothiazole Cy5
  N-(m-PEG4)-N'-(Acid-PEG3)-benzothiazole Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-145245

  TLR4-IN-C34-C2-amide-C6-OH
  TLR4-IN-C34-C2-amide-C6-OH is a linker that incorporates TLR4 inhibitor TLR4-IN-C34. TLR4-IN-C34 inhibits TLR4 in enterocytes and macrophages, and reduces systemic inflammation in mouse models of endotoxemia and necrotizing enterocolitis[1].

• HY-W096144

  Acid-PEG2-ethyl propionate
  Acid-PEG2-ethyl propionate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140054

  t-Boc-aminooxy-PEG6-propargyl
  t-Boc-aminooxy-PEG6-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. t-Boc-aminooxy-PEG6-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W034595

  Eicosanedioic acid
  Eicosanedioic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Eicosanedioic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis

• HY-42151

  Mal-amido-PEG2-C2-acid
  Mal-amido-PEG2-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130202

  Ald-Ph-amido-PEG2-C2-Boc
  Ald-Ph-amido-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132067

  Bis-PEG4-t-butyl ester
  Bis-PEG4-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138513

  Benzyl-PEG4-acyl chloride
  Benzyl-PEG4-acyl chloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140655

  Biotin-PEG-amine (MW 3400)
  Biotin-PEG-amine (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140857

  Iodoacetamide-PEG3-azide		98.93%
  Iodoacetamide-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Iodoacetamide-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141260

  Methyltetrazine-propylamine
  Methyltetrazine-propylamine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133327

  Amino-PEG12-amine
  Amino-PEG12-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W248248

  tert-Butyl 9-aminononanoate
  tert-Butyl 9-aminononanoate is a PROTAC linker. tert-Butyl 9-aminononanoate can be used in synthesis PROTAC sEH-degrader-1 (HY-159494)[1].

• HY-130600

  HO-PEG17-OH		98.94%
  HO-PEG17-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133363

  Fmoc-NH-PEG19-CH2CH2COOH
  Fmoc-NH-PEG19-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140615

  DNP-PEG12-NHS ester
  DNP-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138347

  THP-PEG10-Boc
  THP-PEG10-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138324

  Ms-PEG6-MS
  Ms-PEG6-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140036

  Propargyl-PEG3-bromide
  Propargyl-PEG3-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-bromide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140252

  NH-bis(C1-PEG1-Boc)		99.72%
  NH-bis(C1-PEG1-Boc) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138403

  THP-C1-PEG5
  THP-C1-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130425

  Bromo-PEG1-acid
  Bromo-PEG1-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W003511

  tans-4-Hydroxy-D-proline hydrochloride
  tans-4-Hydroxy-D-proline hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). tans-4-Hydroxy-D-proline hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PR

• HY-140549

  NH-bis-PEG5
  NH-bis-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132022

  Bis-PEG7-t-butyl ester
  Bis-PEG7-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130470

  Chloroacetamido-PEG4-C2-Boc
  Chloroacetamido-PEG4-C2-Boc is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141026

  Bis-PEG25-acid
  Bis-PEG25-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141222

  m-PEG16-alcohol
  m-PEG16-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W055870

  Hydroxy-PEG1-(CH2)2-Boc
  Hydroxy-PEG1-(CH2)2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133503

  Mal-amide-PEG2-oxyamine-Boc
  Mal-amide-PEG2-oxyamineBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096069

  Hydroxy-PEG3-MS
  Hydroxy-PEG3-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140636

  Ald-Ph-PEG2-NH-Boc
  Ald-Ph-PEG2-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130834

  Hydroxy-PEG24-Boc
  Hydroxy-PEG24-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130541

  Propargyl-PEG2-OH
  Propargyl-PEG2-OH is a PEG-based PROTAC linker can be used in the synthesis of Thalidomide-O-PEG2-propargyl (HY-126458)[1]. Propargyl-PEG2-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133386

  SPDP-PEG9-acid
  SPDP-PEG9-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130142

  Biotinyl-NH-PEG3-C3-amido-C3-COOH (DIPEA)
  Biotinyl-NH-PEG3-C3-amido-C3-COOH (DIPEA) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-161653

  Boc-NH-C3-O-Ph(NO2)-methylester-O-pyrrolidine-2,5-dione
  Boc-NH-C3-O-Ph(NO2)-methylester-O-pyrrolidine-2,5-dione is a linker of PROTAC BRD4 Degrader-26 (HY-161650), and can be used for synthesis of PROTACs[1].

• HY-W040135

  Fmoc-NH-PEG8-CH2CH2COOH
  Fmoc-NH-PEG8-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-W040228

  BnO-PEG4-OH
  BnO-PEG4-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140557

  N-Boc-N-bis(PEG3-NHS ester)
  N-Boc-N-bis(PEG3-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140916

  Dde Biotin-PEG4-azide
  Dde Biotin-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Dde Biotin-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141347

  S-acetyl-PEG4-Boc
  S-acetyl-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141343

  S-acetyl-PEG16-alcohol
  S-acetyl-PEG16-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126381

  Boc-N-PEG5-C2-NHS ester
  Boc-N-PEG5-C2-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141048

  N-(Azide-PEG3)-N'-(PEG4-NHS ester)-Cy5
  N-(Azide-PEG3)-N'-(PEG4-NHS ester)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azide-PEG3)-N'-(PEG4-NHS ester)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134711

  Amine-PEG6-thiol
  Amine-PEG6-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138428

  m-PEG9-Mal
  m-PEG9-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140618

  DNP-PEG4-alcohol
  DNP-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133495

  Folate-PEG2-amine
  Folate-PEG2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130146

  Propargyl-PEG3-phosphonic acid diethyl ester
  Propargyl-PEG3-phosphonic acid diethyl ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-phosphonic acid diethyl ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141198

  Boc-NH-PEG2-NH-Boc
  Boc-NH-PEG2-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140305

  DBCO-PEG13-DBCO
  DBCO-PEG13-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG13-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130899

  Boc-NH-PEG23-CH2CH2N3
  Boc-NH-PEG23-CH2CH2N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG23-CH2CH2N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140190

  Amino-PEG2-(CH2)3COOH
  Amino-PEG2-(CH2)3COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130291

  Biotin-PEG3-NHS ester		99.35%
  Biotin-PEG3-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-162736

  1-Piperazinehexanoic acid
  1-Piperazinehexanoic acid is a PROTAC linker that serve as a key intermediate for the synthesis of complete JMV7048 (HY-162704)[1].

• HY-126919

  THP-PEG8-OH
  THP-PEG8-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140442

  Fmoc-aminooxy-PEG12-NHS ester
  Fmoc-aminooxy-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132070

  FA-PEG5-Mal		99.46%
  FA-PEG5-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140680

  m-PEG-Lys-NHS ester (MW 20000)
  m-PEG-Lys-NHS ester (MW 20000) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141258

  Bis-PEG25-TFP ester
  Bis-PEG25-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135085

  Thiol-C2-PEG2-OH
  Thiol-C2-PEG2-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140730

  Thiol-PEG-CH2COOH (MW 5000)
  Thiol-PEG-CH2COOH (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140058

  Aminooxy-PEG4-propargyl
  Aminooxy-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Aminooxy-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-126942

  Amino-PEG6-alcohol
  Amino-PEG6-alcohol is a non-cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG6-alcohol is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140681

  m-PEG-Lys-NHS ester (MW 40000)
  m-PEG-Lys-NHS ester (MW 40000) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116006

  Bis-PEG5-acid
  Bis-PEG5-acid (PROTAC Linker 36) is a PROTAC linker, which belongs to a polyethylene glycol (PEG) linker. Bis-PEG5-acid (PROTAC Linker 36) can be used in the synthesis of the CP5V. CP5V is a PROTAC, and specifically degrades Cdc20[1].

• HY-130528

  m-PEG7-MS
  m-PEG7-MS is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG7-MS is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-135942

  Cbz-NH-PEG8-CH2COOH
  Cbz-NH-PEG8-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W088456

  tert-Butyl N-[3-(piperazin-1-yl)propyl]carbamate
  tert-Butyl N-[3-(piperazin-1-yl)propyl]carbamate is a linker that can be used for synthesis of PROTAC degrader TrimTAC1 (HY-169355)[1].

• HY-130382

  Propargyl-PEG6-alcohol
  Propargyl-PEG6-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG6-alcohol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140976

  Mal-amido-PEG9-amine
  Mal-amido-PEG9-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140668

  Fmoc-N-PEG-CH2COOH (MW 3400)
  Fmoc-N-amido-PEG-CH2COOH (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140558

  N-Boc-N-bis(PEG4-NHS ester)
  N-Boc-N-bis(PEG4-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138399

  Boc-NH-PEG22-C2-NH2
  Boc-NH-PEG22-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096116

  PEG2-Cl
  PEG2-Cl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140038

  Bis-propargyl-PEG1
  Bis-propargyl-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-propargyl-PEG1 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130830

  m-PEG24-NHS ester
  m-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126885

  DBCO-PEG5-NHS ester
  DBCO-PEG5-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-PEG5-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1][2]. DBCO-PEG5-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138517

  Thiol-C9-PEG7
  Thiol-C9-PEG7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140793

  Azido-PEG2-C1-Boc
  Azido-PEG2-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C1-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140455

  Azido-PEG10-acid
  Azido-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130674

  Tos-PEG3-CH2COOH
  Tos-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141246

  1-Isothiocyanato-PEG4-alcohol
  1-Isothiocyanato-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-124480

  Tetrazine-Ph-acid		98.67%
  Tetrazine-Ph-acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-acid is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-140020

  Propargyl-PEG10-acid
  Propargyl-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG10-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140293

  DBCO-NH-Boc
  DBCO-NH-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-143836

  Acid-PEG10-t-butyl ester
  Acid-PEG10-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140960

  DSPE-PEG-2-Aminoethyl-alpha-mannopyranoside, MW 2000
  DSPE-PEG-2-Aminoethyl-alpha-mannopyranoside, MW 2000 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132095

  Methyl-PEG4-acyl chloride
  Methyl-PEG4-acyl chloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W754588

  exo-BCN-L-Lysine
  exo-BCN-L-Lysine is a Click Amino Acid that can be used as a linker in the synthesis of PROTAC molecules. exo-BCN-L-Lysine contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138515

  Br-PEG7-NHBoc
  Br-PEG7-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-22393

  Diethylene Glycol Monobenzyl Ether		99.37%
  Diethylene Glycol Monobenzyl Ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141003

  3,4-Dibromo-Mal-PEG8-acid
  3,4-Dibromo-Mal-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096162

  NH2-PEG2-methyl acetate
  NH2-PEG2-methyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-121507

  Hydroxy-PEG2-C2-sulfonic acid
  Hydroxy-PEG2-C2-sulfonic acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140548

  NH-bis-PEG4
  NH-bis-PEG4 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-111456

  DBCO-NHCO-PEG4-NHS ester
  DBCO-NHCO-PEG4-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-NHCO-PEG4-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. DBCO-NHCO-PEG4-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141233

  Dodecaethylene glycol		99.93%
  Dodecaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140965

  Mal-PEG5-Boc
  Mal-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138518

  Azido-PEG3-aldehyde
  Azido-PEG3-aldehyde is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-aldehyde is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141005

  3,4-Dibromo-Mal-PEG2-N-Boc
  3,4-Dibromo-Mal-PEG2-N-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-30756

  tert-Butyl 2,7-diazaspiro[3.5]nonane-2-carboxylate
  tert-Butyl 2,7-diazaspiro[3.5]nonane-2-carboxylate is a PROTAC linker. tert-Butyl 2,7-diazaspiro[3.5]nonane-2-carboxylate is the linker of PROTAC ER Degrader-12 (HY-160264) and PROTAC AR Degrader-9 (HY-170332)[1].

• HY-140029

  Propargyl-PEG10-Boc
  Propargyl-PEG10-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG10-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141332

  Lipoamido-PEG4-acid
  Lipoamido-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-119343

  Biotin-PFP ester
  Biotin-PFP ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133278

  m-PEG10-Br
  m-PEG10-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168193

  5-Amino-N-(3-bromopropyl)pentanamide
  5-Amino-N-(3-bromopropyl)pentanamide is a PROTAC linker used in the synthesis of PROTAC TBL1X degrader-1 (HY-168190)[1].

• HY-140867

  N-(Azido-PEG2)-N-bis(PEG4-Boc)
  N-(Azido-PEG2)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-bis(PEG4-Boc) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140842

  Azido-PEG4-nitrile
  Azido-PEG4-nitrile is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-nitrile is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132053

  Benzyl-PEG16-alcohol
  Benzyl-PEG16-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140979

  Mal-amido-PEG8-TFP ester
  Mal-amido-PEG8-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W008574A

  TGN-020 sodium		99.96%
  TGN-020 sodium is a selective Aquaporin 4 (AQP4) inhibitor with an IC50 of 3.1 μM[1][2]. TGN-020 sodium is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[3]. TGN-020 sodium alleviates edema and inhibits glial scar formation after spinal cord compression injury in rats[4].

• HY-141062

  N-Methyl-N'-(azido-PEG2-C5)-Cy5
  N-Methyl-N'-(azido-PEG2-C5)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Methyl-N'-(azido-PEG2-C5)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134718

  Glycocholic acid-PEG10-iodoacetamide
  Glycocholic acid-PEG10-iodoacetamide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007545

  NH2-PEG3
  NH2-PEG3 (PROTAC Linker 35) is a PROTAC linker, which belongs to a polyethylene glycol (PEG) linker. NH2-PEG3 (PROTAC Linker 35) can be used in the synthesis of the PROTAC (β-NF-JQ1)[1].

• HY-159557

  Ethyl-trans-4-benzylcyclohexane-1-carboxylate
  Ethyl-trans-4-benzylcyclohexane-1-carboxylate is a PROTAC linker.

• HY-133319

  Azido-PEG24-Boc
  Azido-PEG24-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG24-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130667

  Ald-Ph-amido-C2-PEG3-azide		98.92%
  Ald-Ph-amido-C2-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Ald-Ph-amido-C2-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-76105

  D-Proline, 4-hydroxy-, methyl ester hydrochloride
  D-Proline, 4-hydroxy-, methyl ester hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). D-Proline, 4-hydroxy-, methyl ester hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2

• HY-124780

  HOOCCH2O-PEG4-CH2COOH
  HOOCCH2O-PEG4-CH2COOH, compound 5, is a symmetric PEG linker, used for the synthesis of the first class of Homo-PROTAC[1].

• HY-132066

  Bis-PEG3-t-butyl ester
  Bis-PEG3-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140517

  N-(Azido-PEG3)-N-bis(PEG3-acid)
  N-(Azido-PEG3)-N-bis(PEG3-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-bis(PEG3-acid) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140248

  N-(Mal-PEG6)-N-bis(PEG3-amine)
  N-(Mal-PEG6)-N-bis(PEG3-amine) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140087

  N-(Amino-PEG2)-N-bis(PEG3-azide)
  N-(Amino-PEG2)-N-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Amino-PEG2)-N-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140595

  m-PEG3-S-PEG1-C2-Boc
  m-PEG3-S-PEG1-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140861

  Trityl-PEG10-azide
  Trityl-PEG10-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Trityl-PEG10-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130161

  m-PEG4-Br
  m-PEG4-Br is a cleavable ADC linker used in the synthesis of antibody-drug conjugate (ADC) for Trastuzumab (HY-P9907). m-PEG4-Br is placed distally from the monomethyl auristatin E (MMAE) payload to yield an ADC with altered hydrophilicity, antigen binding, and in vitro potency[1]. m-PEG4-Br also can be used as a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140876

  Propargyl-PEG3-methyl ester
  Propargyl-PEG3-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-methyl ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133334

  Amino-PEG7-acid
  Amino-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140963

  Mal-PEG12-NHS ester
  Mal-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140742

  Benzyl-PEG2-amine
  Benzyl-PEG2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-147205A

  Biotin-PEG-OH (MW 2000)
  Biotin-PEG-OH (MW 2000) is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1].

• HY-W096078

  Bromo-PEG7-azide
  Bromo-PEG7-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140955

  DSPE-PEG4-DBCO
  DSPE-PEG4-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DSPE-PEG4-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140862

  Phthalamide-PEG3-azide
  Phthalamide-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Phthalamide-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138752A

  S-acetyl-PEG4-amine TFA
  S-acetyl-PEG4-amine (TFA) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138382

  m-PEG4-PFP ester
  m-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140657

  Biotin-PEG-triethoxysilane (MW 1000)
  Biotin-PEG-triethoxysilane (MW 1000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130449

  N-Boc-N-bis(PEG4-OH)
  N-Boc-N-bis(PEG4-OH) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-N-bis(PEG4-OH) is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-134749

  Propargyl-PEG2-urea-C3-triethoxysilane
  Propargyl-PEG2-urea-C3-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-urea-C3-triethoxysilane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141186

  TCO-OH
  TCO-OH is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-OH is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-140692

  m-PEG-mal (MW 20000)
  m-PEG-mal (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140057

  Aminooxy-PEG3-propargyl
  Aminooxy-PEG3-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Aminooxy-PEG3-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138709

  Benzyl-PEG6-Ots
  Benzyl-PEG6-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-W140896

  Dodecylheptaglycol
  Dodecylheptaglycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141400

  m-PEG12-Boc
  m-PEG12-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-138715

  Benzyl-PEG4-Azido
  Benzyl-PEG4-Azido is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Benzyl-PEG4-Azido is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140882

  Boc-NH-PEG7-propargyl
  Boc-NH-PEG7-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG7-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140975

  Mal-amido-PEG24-acid		98.51%
  Mal-amido-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140802

  Azido-PEG11-alcohol
  Azido-PEG11-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG11-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141049

  N-methyl-N'-(propargyl-PEG4)-Cy5
  N-methyl-N'-(propargyl-PEG4)-Cy5 (chloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-methyl-N'-(propargyl-PEG4)-Cy5 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141056

  N-(m-PEG4)-N'-(amino-PEG3)-Cy5
  N-(m-PEG4)-N'-(amino-PEG3)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133494

  Folate-PEG1-mal
  Folate-PEG1-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W044155

  Azido-PEG2-azide		98.11%
  Azido-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140254

  N-(Amino-PEG3)-N-bis(PEG4-Boc)
  N-(Amino-PEG3)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143828

  t-Boc-N-amido-PEG10-Br
  t-Boc-N-amido-PEG10-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133193

  Bis-propargyl-PEG5
  Bis-propargyl-PEG5 is a PEG-based PROTAC linker used in the synthesis of PROTACs. Bis-propargyl-PEG5 is used for the synthesis of carbohydrate receptors (SCRs) with anti-Zika activity[1]. Bis-propargyl-PEG5 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141267

  Methyltetrazine-PEG25-acid
  Methyltetrazine-PEG25-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130901

  m-PEG25-Propargyl
  m-PEG25-Propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG25-Propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140823

  Bromo-PEG6-azide
  Bromo-PEG6-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140454

  Azido-PEG8-acid
  Azido-PEG8-acid is a non-cleavable 8 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG8-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W108220

  Benzyl-PEG5-Ots
  Benzyl-PEG5-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-128804

  PEG3-O-CH2COOH
  PEG3-O-CH2COOH (PROTAC Linker 8) is a PEG-based PROTAC linker can be used in the synthesis of SNIPERs[1].

• HY-128801

  NH2-PEG3-C1-Boc
  NH2-PEG3-C1-Boc (PROTAC Linker 5) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-135153

  Methylamino-PEG4-acid
  Methylamino-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133364

  Fmoc-NH-PEG25-CH2CH2COOH
  Fmoc-NH-PEG25-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W442085

  1,4-Di(3-hydroxypropoxy)butane
  1,4-Di(3-hydroxypropoxy)butane is the linker of PROTAC Aster-A degrader-1 (HY-D233) and can be used for the synthesis of PROTAC[1].

• HY-132014

  THP-PEG11-THP
  THP-PEG11-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140135

  PC-Biotin-PEG4-NHS carbonate
  PC-Biotin-PEG4-NHS carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140362

  m-PEG2-MS
  m-PEG2-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140566

  N-Azido-PEG4-N-Boc-N-PEG3-Boc
  N-Azido-PEG4-N-Boc-N-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Azido-PEG4-N-Boc-N-PEG3-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126892

  Bis-PEG7-acid
  Bis-PEG7-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG6-propionic acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-141109

  m-PEG25-NHS ester
  m-PEG25-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141391

  Bromoacetamido-PEG9-ethylcarbamoyl-C8-Boc
  Bromoacetamido-PEG9-ethylcarbamoyl-C8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143827

  Biotin-PEG10-amine
  Biotin-PEG10-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133500

  Boc-HyNic-PEG2-alkyne
  Boc-HyNic-PEG2-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-HyNic-PEG2-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130228

  N3-PEG8-CH2COOH
  N3-PEG8-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. N3-PEG8-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130560

  Biotin-PEG3-propionic hydrazide
  Biotin-PEG3-propionic hydrazide is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-140504

  m-PEG12-COO-propanoic acid
  m-PEG12-COO-propanoic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140958

  DSPE-PEG5-propargyl
  DSPE-PEG5-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DSPE-PEG5-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140941

  Biotin-PEG2-C2-iodoacetamide
  Biotin-PEG2-C2-iodoacetamide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140349

  AZD-CO-C2-Ph-amido-Ph-azide
  AZD-CO-C2-Ph-amido-Ph-azide is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. AZD-CO-C2-Ph-amido-Ph-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-169489

  2F-Pyrimidine-piperidine-spiro[3.3]heptane-acid
  2F-Pyrimidine-piperidine-spiro[3.3]heptane-acid is a PROTAC linker. 2F-Pyrimidine-piperidine-spiro[3.3]heptane-acid can be used in the synthesis of PROTACs (e.g. HY-169272)[1].

• HY-130554

  m-PEG9-phosphonic acid		99.33%
  m-PEG9-phosphonic acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-162791

  (1s,4s)-C1-Piperidine-C1-cyclohexane-C1
  (1s,4s)-C1-Piperidine-C1-cyclohexane-C1 is a PROTAC linker. (1s,4s)-C1-Piperidine-C1-cyclohexane-C1 can be used to synthesize PROTAC SMARCA2/4-degrader-33 (HY-162741)[1].

• HY-140954

  DSPE-PEG5-azide
  DSPE-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DSPE-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141021

  Bis-PEG13-acid
  Bis-PEG13-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W052600

  Ethyl azetidine-3-carboxylate hydrochloride
  Ethyl azetidine-3-carboxylate hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Ethyl azetidine-3-carboxylate hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2]

• HY-130878

  HS-PEG24-CH2CH2COOH
  HS-PEG24-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138379

  Boc-PEG4-acid
  Boc-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138490

  Iodoacetyl-PEG8-biotin
  Iodoacetyl-PEG8-biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133054

  PEG4-sulfonic acid
  PEG4-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140396

  Aminooxy-PEG3-bromide
  Aminooxy-PEG3-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133377

  Biotin-PEG24-acid
  Biotin-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W109760

  FmocNH-PEG2-CH2CONH-PEG2-CH2COOH
  FmocNH-PEG2-CH2CONH-PEG2-CH2COOH is an optimized, extended PEG-like linker[1].

• HY-141354

  SPDP-PEG24-acid
  SPDP-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007529

  Boc-6-aminohexanoic acid
  Boc-6-aminohexanoic acid is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040238

  Fmoc-NH-PEG2-CH2CH2COOH		99.79%
  Fmoc-NH-PEG2-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG2-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138503

  Biotin-PEG3-propargyl
  Biotin-PEG3-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG3-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138738

  Propargyl-PEG5-azide
  Propargyl-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W035378

  Fmoc-N-methyl-PEG3-CH2CH2COOH
  Fmoc-N-methyl-PEG3-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-N-methyl-PEG3-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141254

  N-(Boc-PEG3)-N-bis(PEG2-alcohol)
  N-(Boc-PEG3)-N-bis(PEG2-alcohol) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-129772

  Phthalimide-PEG3-C2-OTs
  Phthalimide-PEG3-C2-OTs (Compound 5) is a PROTAC linker, which refers to the PEGs composition. Phthalimide-PEG3-C2-OTs can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-140717

  HO-PEG-mal (MW 3400)
  HO-PEG-mal (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133009

  BCN-PEG4-acid
  BCN-PEG4-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. BCN-PEG4-acid contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140962

  Mal-PEG12-acid
  Mal-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140528

  N-Biotin-N-bis(PEG4-acid)
  N-Biotin-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130209

  S-Acetyl-PEG8-OH
  S-Acetyl-PEG8-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140602

  Azido-PEG3-Sulfone-PEG4-acid
  Azido-PEG3-Sulfone-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-Sulfone-PEG4-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141337

  Lipoamido-PEG2-OH
  Lipoamido-PEG2-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138325

  Azido-PEG6-THP
  Azido-PEG6-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-THP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141007

  3,4-Dibromo-Mal-PEG8-Boc
  3,4-Dibromo-Mal-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140465

  Fmoc-NMe-PEG4-C2-acid
  Fmoc-NMe-PEG4-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141185

  TCO-PEG3-amide-C3-triethoxysilane
  TCO-PEG3-amide-C3-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138414

  Bromoacetic-PEG1-CH2-NHS ester
  Bromoacetic-PEG1-CH2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134678

  Propanol-PEG5-CH2OH
  Propanol-PEG5-CH2OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130548

  m-PEG6-2-methylacrylate
  m-PEG6-2-methylacrylate is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130527

  Ald-Ph-PEG4-NH-Boc
  Ald-Ph-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138473

  Boc-PEG1-Boc
  Boc-PEG1-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-127056

  Sulfo DBCO-amine		99.00%
  Sulfo DBCO-amine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Sulfo DBCO-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-134731

  N-Ethylacetamide-PEG2-Br
  N-Ethylacetamide-PEG2-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141390

  Bromoacetamido-PEG9-ethylcarbamoyl-C4-Boc
  Bromoacetamido-PEG9-ethylcarbamoyl-C4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135939

  DBCO-NHCO-PEG2-Biotin
  DBCO-NHCO-PEG2-Biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG2-Biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W007341

  Pentaethylene glycol
  Pentaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140601

  Sulfone-Bis-PEG4-acid
  Sulfone-Bis-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141304

  Boc-PEG4-phosphonic acid ethyl ester
  Boc-PEG4-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130486

  NH2-PEG6-Boc
  NH2-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. NH2-PEG6-Boc is also a non-cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-141114

  m-PEG8-succinimidyl carbonate
  m-PEG8-succinimidyl carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140334

  Diethyl 12-bromododecylphosphonate
  Diethyl 12-bromododecylphosphonate is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-113924

  Tri(t-butoxycarbonylethoxymethyl) ethanol
  Tri(t-butoxycarbonylethoxymethyl) ethanol is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134740

  Br-PEG2-oxazolidin-2-one
  Br-PEG2-oxazolidin-2-one is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140165

  Bis-PEG3-sulfonic acid
  Bis-PEG3-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-43721

  N-Boc-4-pentyne-1-amine
  N-Boc-4-pentyne-1-amine is a PROTAC linker, which refers to the alkyl chain composition. N-Boc-4-pentyne-1-amine can be used in the synthesis of the PROTAC MG-277 (HY-130122)[1]. N-Boc-4-pentyne-1-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W190971

  Triethylene glycol monodecyl ether
  Triethylene glycol monodecyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140591

  Azido-PEG3-S-PEG4-propargyl
  Azido-PEG3-S-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-S-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-140206

  Amino-PEG24-alcohol
  Amino-PEG24-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130875

  HS-PEG9-CH2CH2COOH
  HS-PEG9-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140237

  Boc-Gly-amido-C-PEG3-C3-amine
  Boc-Gly-amido-C-PEG3-C3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132109

  MS-PEG4-t-butyl ester
  MS-PEG4-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-144077

  Bromo-PEG7-CH2COOtBu
  Bromo-PEG7-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140506

  m-PEG6-O-CH2COOH
  m-PEG6-O-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133300

  HO-PEG22-OH
  HO-PEG22-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-40178

  NH2-C4-NH-Boc
  NH2-C4-NH-Boc (compound 15) is a PROTAC linker, which refers to the Alkyl/ether composition. NH2-C4-NH-Boc can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-135925

  Cbz-NH-PEG1-CH2COOH		99.73%
  Cbz-NH-PEG1-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133289

  m-PEG48-OH
  m-PEG48-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130183

  Propargyl-PEG6-N3
  Propargyl-PEG6-N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG6-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133365

  Fmoc-NH-PEG30-CH2CH2COOH
  Fmoc-NH-PEG30-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140779

  Azido-PEG6-C2-Boc		99.77%
  Azido-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-C2-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133502

  Boc-HyNic-PEG2-DBCO
  Boc-HyNic-PEG2-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-HyNic-PEG2-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-132056

  Hydroxy-PEG14-t-butyl ester
  Hydroxy-PEG14-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140044

  Propargyl-PEG2-methylamine
  Propargyl-PEG2-methylamine (Propargyl-PEG2-NHMe) is a PEG derivative containing a propargyl group and methylamine group. Propargyl-PEG2-methylamine is an PROTAC linker used in the synthesis of PROTACs. Propargyl-PEG2-methylamine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups[1].

• HY-141187

  TCO-PEG3-TCO		99.07%
  TCO-PEG3-TCO is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141000

  Mal-PEG4-Lys(TFA)-NH-m-PEG24
  Mal-PEG4-Lys(TFA)-NH-m-PEG24 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140697

  m-PEG-OH (MW5000)
  m-PEG-OH (MW5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096073

  Benzyl-PEG4-amine
  Benzyl-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140183

  Amino-PEG25-acid
  Amino-PEG25-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140485

  Acid-PEG5-mono-methyl ester
  Acid-PEG5-mono-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138525

  Azido-PEG4-Thiol
  Azido-PEG4-Thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-Thiol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-169142

  N-(7-Aminoheptyl)-2-bromoacetamide
  N-(7-Aminoheptyl)-2-bromoacetamide is a PROTACT linker.N-(7-Aminoheptyl)-2-bromoacetamide can be used to synthesize PROTACT molecules[1].

• HY-141077

  N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7 chloride
  N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7 (chloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7 (chloride) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141357

  SPDP-PEG24-NHS ester
  SPDP-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133473

  S-acetyl-PEG6-Tos
  S-acetyl-PEG6-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120368

  Fluorescein-PEG4-acid
  Fluorescein-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140943

  Biotin-PEG7-thiourea
  Biotin-PEG7-thiourea is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140283

  DBCO-PEG2-amine
  DBCO-PEG2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG2-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140973

  Mal-amido-PEG10-acid
  Mal-amido-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138437

  Azido-PEG8-TFP ester
  Azido-PEG8-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-TFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141408

  m-PEG5-triethoxysilane
  m-PEG5-triethoxysilane is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130182

  Propargyl-PEG8-NH2
  Propargyl-PEG8-NH2 (compound 3b) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG8-NH2 is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG8-NH2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-168692

  3-(2-(4-Methylpiperazin-1-yl)ethyl)azetidin-3-ol
  3-(2-(4-Methylpiperazin-1-yl)ethyl)azetidin-3-ol is a linker for BRD4 PROTAC BD-9136 (HY-149878)[1].

• HY-141272

  Methyltetrazine-PEG24-NHS ester		99.32%
  Methyltetrazine-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133286

  m-PEG9-CH2COOH
  m-PEG9-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141027

  Bis-PEG29-acid
  Bis-PEG29-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096076

  Bis-PEG6-t-butyl ester
  Bis-PEG6-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W004701

  Br-C3-methyl ester
  Br-C3-methyl ester is a Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTAC PD-1/PD-L1 degrader-1 (HY-131183)[1].

• HY-140338

  Benzenedimethanamine-diethylamine
  Benzenedimethanamine-diethylamine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130407

  Lipoamido-PEG3-OH
  Lipoamido-PEG3-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Lipoamido-PEG3-OH (compound TA-TEG-G2CN) can be used in the formation of a highly stable, dendronized gold nanoparticle (AuNP)-based drug delivery platform[1].

• HY-140728

  Thiol-PEG-CH2COOH (MW 2000)
  Thiol-PEG-CH2COOH (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140806

  Azido-PEG24-alcohol
  Azido-PEG24-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG24-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-135169

  Mal-PEG3-Boc
  Mal-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141040

  N-methyl-N'-methyl-O-(m-PEG4)-O'-(acid-PEG5)-Cy5
  N-methyl-N'-methyl-O-(m-PEG4)-O'-(acid-PEG5)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138482

  MS-PEG1-THP
  MS-PEG1-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141394

  Chloroacetamido-PEG4-NHS ester
  Chloroacetamido-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141170

  TCO-PEG12-NHS ester
  TCO-PEG12-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. TCO-PEG12-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-W096086

  Ethyl acetate-PEG1
  Ethyl acetate-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141316

  m-PEG8-(CH2)12-phosphonic acid ethyl ester
  m-PEG8-(CH2)12-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130174

  Ald-Ph-amido-PEG3-C2-NH2
  Ald-Ph-amido-PEG3-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141063

  N-(m-PEG4)-N'-(azide-PEG3)-Cy5
  N-(m-PEG4)-N'-(azide-PEG3)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG4)-N'-(azide-PEG3)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140807

  Azido-PEG36-alcohol
  Azido-PEG36-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG36-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134708

  Bromo-PEG3-CO-NH2
  Bromo-PEG3-CO-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140086

  N-(Amino-PEG1)-N-bis(PEG2-propargyl)
  N-(Amino-PEG1)-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Amino-PEG1)-N-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133411A

  NH2-O-C5-COOH hydrobromide
  NH2-O-C5-COOH (hydrobromide) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140560

  N-(Azido-PEG2)-N-Boc-PEG4-NHS ester
  N-(Azido-PEG2)-N-Boc-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Boc-PEG4-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130372

  Propargyl-PEG9-bromide
  Propargyl-PEG9-bromide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG9-bromide is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG9-bromide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133481

  Iodo-PEG12-acid
  Iodo-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-23166

  Bis-PEG1-acid
  Bis-PEG1-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133344

  m-PEG3-Hydrazide
  m-PEG3-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141296

  PEG5-bis-(Ethyl phosphonate)
  PEG5-bis-(Ethyl phosphonate) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140428

  Boc-Aminooxy-PEG5-amine
  Boc-Aminooxy-PEG5-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W004447

  Pentaethylene glycol di(p-toluenesulfonate)
  Pentaethylene glycol di(p-toluenesulfonate) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096075

  Benzyl-PEG5-THP
  Benzyl-PEG5-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-40171S

  NH2-C2-NH-Boc-d4
  NH2-C2-NH-Boc-d4 is the deuterium labeled NH2-C2-NH-Boc[1]. NH2-C2-NH-Boc (PROTAC Linker 22) is a alkyl chain-based PROTAC linker can be used in the synthesis of PROTACs[2].

• HY-133306

  Hydroxy-PEG12-acid
  Hydroxy-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141341

  S-acetyl-PEG4-alcohol
  S-acetyl-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-169975

  tert-Butyl 4-(4-(piperazin-1-ylmethyl)piperidin-1-yl)benzoate
  tert-Butyl 4-(4-(piperazin-1-ylmethyl)piperidin-1-yl)benzoate is a PROTAC linker. tert-Butyl 4-(4-(piperazin-1-ylmethyl)piperidin-1-yl)benzoate can be used to synthesize PROTAC AR Degrader-6 (HY-156751)[1].

• HY-141271

  Methyltetrazine-PEG13-NHS ester
  Methyltetrazine-PEG13-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141106

  m-PEG12-NHS ester
  m-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141269

  Methyltetrazine-PEG5-NHS ester
  Methyltetrazine-PEG5-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W006635

  Bpin-Cyclohexene-COOEt
  Bpin-Cyclohexene-COOEt (Ethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-cyclohexene-1-carboxylate) is a PROTAC linker belonging to the PEG class. Bpin-Cyclohexene-COOEt can be used to synthesize PROTAC molecules[1].

• HY-138747

  Bis-sulfone-PEG4-Tetrazine
  Bis-sulfone-PEG4-Tetrazine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-sulfone-PEG4-Tetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-141310

  m-PEG6-(CH2)6-Phosphonic acid
  m-PEG6-(CH2)6-Phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141369

  Bromo-PEG24-Boc
  Bromo-PEG24-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138708

  Azido-PEG8-NHBoc
  Azido-PEG8-NHBoc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Azido-PEG8-NHBoc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140768

  Azido-PEG3-O-NHS ester
  Azido-PEG3-O-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-O-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140971

  Mal-PEG12-alcohol
  Mal-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140949

  N-(Biotin)-N-bis(PEG1-alcohol)
  N-(Biotin)-N-bis(PEG1-alcohol) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168388

  Piperidine-C2-piperazine-Boc
  Piperidine-C2-piperazine-Boc is a PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140399

  Aminooxy-PEG7-methane
  Aminooxy-PEG7-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130336

  m-PEG6-Tos
  m-PEG6-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140945

  Fmoc-Lys (biotin-PEG12)-OH
  Fmoc-Lys (biotin-PEG12)-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140661

  Azide-PEG-amine (MW 2000)
  Azide-PEG-amine (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-amine (MW 2000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140863

  PC-PEG11-Azide
  PC-PEG11-Azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. PC-PEG11-Azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140072

  endo-BCN-PEG2-PFP ester
  endo-BCN-PEG2-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG2-PFP ester is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130942

  Bromoacetamide-PEG3-propargyl
  Bromoacetamide-PEG3-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromoacetamide-PEG3-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141245

  Hydroxy-PEG4-C2-nitrile
  Hydroxy-PEG4-C2-nitrile is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130489

  Bromo-PEG5-C2-acid
  Bromo-PEG5-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140796

  Azido-PEG6-C1-Boc
  Azido-PEG6-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-C1-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140466

  Fmoc-NH-PEG11-CH2COOH
  Fmoc-NH-PEG11-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140426

  Boc-Aminooxy-PEG2-C2-amine
  Boc-Aminooxy-PEG2-C2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140839

  Boc-NH-PEG7-azide
  Boc-NH-PEG7-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130712

  NH2-C2-amido-C2-Boc
  NH2-C2-amido-C2-Boc is a PROTAC linker, which refers to the alkyl/ether composition. NH2-C5-NH-Boc can be used in the synthesis of a series of PROTACs, such as the PROTAC CDK2/9 Degrader-1 (HY-130709)[1].

• HY-138722

  Mal-PEG10-Boc
  Mal-PEG10-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-156391A

  (R)-TCO4-PEG2-Maleimide
  TCO4-PEG2-Maleimide is a PROTAC linker and belongs to the PEG class. TCO4-PEG2-Maleimide contains TCO and Maleimide groups, which can undergo specific "click" reactions with tetrazine groups or thiol groups, or "mercapto-acrylamide" reactions.

• HY-140822

  Bromo-PEG5-azide
  Bromo-PEG6-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140184

  Amino-PEG28-acid
  Amino-PEG28-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007322

  Boc-NH-PEG1-OH
  Boc-NH-PEG1-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-69260

  tert-Butyl 4-formylpiperidine-1-carboxylate
  tert-Butyl 4-formylpiperidine-1-carboxylate is the linker of PROTAC BRM/BRG1 degrader-3 (HY-168251)[1].

• HY-130469

  Mal-PEG4-Boc		99.93%
  Mal-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138732

  m-PEG5-amino-Mal
  m-PEG5-amino-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141206

  Hydroxy-PEG11-Boc
  Hydroxy-PEG11-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140736B

  DSPE-PEG-Biotin, MW 5000
  DSPE-PEG-Biotin, MW 5000 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141366

  Bromo-PEG5-Boc
  Bromo-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W022232

  Boc-NH-PEG5-CH2CH2COOH
  Boc-NH-PEG5-CH2CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1].

• HY-133308

  Hydroxy-PEG16-acid
  Hydroxy-PEG16-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140782

  Azido-PEG12-Boc
  Azido-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG12-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133299

  Br-PEG7-Br
  Br-PEG7-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130672

  Hydroxy-PEG3-NHS
  Hydroxy-PEG3-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141251

  N-(Hydroxy-PEG3)-N-bis(PEG4-Boc)
  N-(Hydroxy-PEG3)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-145090

  DBCO-N-bis(PEG4-NHS ester)
  DBCO-N-bis(PEG4-NHS ester) is a PEG linker which contains two PEG4-NHS ester and a DBCO group. DBCO-N-bis(PEG4-NHS ester) is useful for protein modification or labeling. DBCO-N-bis(PEG4-NHS ester) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-Y0786

  1,3-Dibromo-5,5-dimethylhydantoin
  1,3-Dibromo-5,5-dimethylhydantoin is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120845

  Tr-PEG5-OH
  Tr-PEG5-OH is a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Tr-PEG5-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130586

  Mal-PEG3-PFP ester
  Mal-PEG3-PFP ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-120775

  Boc-NH-PEG1-CH2CH2COOH
  Boc-NH-PEG1-CH2CH2COOH is a cleavable (1 unit PEG) ADC linker and also a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of antibody-drug conjugates (ADCs) or PROTACs[1][2].

• HY-133061

  Fluorescein-thiourea-PEG6-acid
  Fluorescein-thiourea-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140585

  N-DBCO-N-bis(PEG2-C2-NHS ester)
  N-DBCO-N-bis(PEG2-C2-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-DBCO-N-bis(PEG2-C2-NHS ester) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W096081

  Benzyl-PEG10-alcohol
  Benzyl-PEG10-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132068

  THP-PEG7-alcohol
  THP-PEG7-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-108368

  Azido-PEG2-CH2COOH
  Azido-PEG2-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Azido-PEG2-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140568

  N-(Hydroxy-PEG3)-N-Boc-PEG4-Boc
  N-(Hydroxy-PEG3)-N-Boc-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140832

  m-PEG24-azide
  m-PEG24-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG24-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-163758

  COOH-C3-CONH-C7-COOH
  COOH-C3-COGN-C7-COOH is a PEG based linker for PROTAC. COOH-C3-COGN-C7-COOH can be used for synthesis of PROTAC Degrader ARM165 (HY-163677)[1].

• HY-140482

  Acid-PEG6-C2-Boc
  Acid-PEG6-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130388

  Propargyl-PEG5-NHS ester
  Propargyl-PEG5-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG5-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG5-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140543

  N-DBCO-N-bis(PEG2-C2-acid)
  N-DBCO-N-bis(PEG2-C2-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-DBCO-N-bis(PEG2-C2-acid) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133437

  BCN-PEG4-alkyne
  BCN-PEG4-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. BCN-PEG4-alkyne is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-156700

  Lenalidomide-acetylene-Br
  Lenalidomide-acetylene-Br is a PROTAC Linker taht makes up HJM-561 (HY-156698). HJM-561 is a potent, selective, and orally active EGFR PROTAC to inhiibit Osimertinib (HY-15772)-resistant EGFR triple mutations.

• HY-140829

  m-PEG11-azide
  m-PEG11-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG11-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130577

  Amino-PEG5-CH2COOH
  Amino-PEG5-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130890

  (+)-Biotin-PEG12-OH
  (+)-Biotin-PEG12-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140347

  APN-C3-NH-Boc
  APN-C3-NH-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. APN-C3-NH-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140294

  DBCO-C2-PEG4-NH-Boc
  DBCO-C2-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-C2-PEG4-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138401

  Dimethylamine-PEG19
  Dimethylamine-PEG19 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140383

  Ms-PEG2-C2-Boc
  Ms-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140381

  Azide-PEG2-MS
  Azide-PEG2-Ms is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG2-Ms is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130505

  N-Boc-PEG7-alcohol
  N-Boc-PEG7-alcohol is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG7-alcohol is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-135935

  DBCO-NHCO-PEG2-CH2COOH
  DBCO-NHCO-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG2-CH2COOH is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133298

  Amino-PEG14-alcohol
  Amino-PEG14-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141064

  N-(azide-PEG3)-N'-(m-PEG4)-Benzothiazole Cy5
  N-(azide-PEG3)-N'-(m-PEG4)-Benzothiazole Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(azide-PEG3)-N'-(m-PEG4)-Benzothiazole Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W017829

  1,7-Bis-Boc-1,4,7-triazaheptane
  1,7-Bis-Boc-1,4,7-triazaheptane is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140788

  Azide-PEG9-amido-C4-Boc
  Azide-PEG9-amido-C4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG9-amido-C4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-41921

  Propargyl-PEG3-alcohol
  Propargyl-PEG3-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-alcohol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140024

  Propargyl-PEG4-CH2-acid
  Propargyl-PEG4-CH2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-CH2-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140777

  Azido-PEG4-Boc
  Azido-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140711

  HO-PEG-CH2COOH (MW 3400)
  HO-PEG-CH2COOH (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133410

  Mal-C2-cyclohexylcarboxyl-hydrazide TFA
  Mal-​C2-cyclohexylcarboxyl-hydrazide (TFA) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140479

  Acid-PEG1-C2-Boc
  Acid-PEG1-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130290

  Biotin-PEG4-OH
  Biotin-PEG4-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-138342

  Benzyl-PEG1-MS
  Benzyl-PEG1-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130417

  Tos-PEG4-acid
  Tos-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138334

  Propargyl-PEG1-THP
  Propargyl-PEG1-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG1-THP is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138337

  MS-PEG8-THP
  MS-PEG8-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130442

  Mal-PEG2-acid
  Mal-PEG2-acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Mal-PEG2-acid can be conjugated to Tubulysin (HY-128914) and its derivative cytotoxic molecule[1]. Mal-PEG2-acid is also a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-130194

  Azido-PEG5-CH2CO2H
  Azido-PEG5-CH2CO2H is a cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG5-CH2CO2H is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-CH2CO2H is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140570

  N-Mal-N-bis(PEG2-amine)
  N-Mal-N-bis(PEG2-amine) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096072

  Benzyl-PEG2-MS
  Benzyl-PEG2-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040165

  Amino-PEG3-C2-acid
  Amino-PEG3-C2-acid is a cleavable PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG3-C2-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140620

  m-PEG4-aldehyde
  m-PEG4-aldehyde is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130185

  m-PEG7-CH2CH2CHO
  m-PEG7-CH2CH2CHO is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG7-CH2CH2CHO is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-130896

  Bis-Mal-PEG7
  Bis-Mal-PEG7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W045598

  Boc-C16-COOH
  Boc-C16-COOH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-C16-COOH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs

• HY-140696

  m-PEG-OH (MW 2000)
  m-PEG-OH (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133294

  Thiol-PEG8-alcohol
  Thiol-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-76043

  H-Hyp-OMe hydrochloride
  H-Hyp-OMe hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). H-Hyp-OMe hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]<

• HY-130883

  N3-PEG3-Propanehydrazide
  N3-PEG3-Propanehydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N3-PEG3-Propanehydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126949

  Aminooxy-PEG3-azide
  Aminooxy-PEG3-azide is a non-cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Aminooxy-C2-PEG3-azide is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2]. Aminooxy-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140463

  Fmoc-N-PEG23-acid
  Fmoc-N-amido-PEG23-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134697

  Benzyl-PEG15-alcohol
  Benzyl-PEG15-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141242

  Hydroxy-PEG4-C2-methyl ester
  Hydroxy-PEG4-C2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130408

  m-PEG6-Amine
  m-PEG6-Amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG6-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-133496

  Folate-PEG3-alkyne
  Folate-PEG3-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Folate-PEG3-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140669

  Fmoc-N-PEG-CH2COOH (MW 5000)
  Fmoc-N-amido-PEG-CH2COOH (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140238

  Cbz-N-PEG15-amine
  Cbz-N-PEG15-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132118

  Bromo-PEG10-t-butyl ester
  Bromo-PEG10-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134705

  m-PEG2-amido-Ph-NH2
  m-PEG2-amido-Ph-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141373

  Bromo-PEG3-bromide		98.10%
  Bromo-PEG3-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140972

  Mal-amido-PEG9-NH-Boc
  Mal-amido-PEG9-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138477

  Benzyl-PEG24-THP
  Benzyl-PEG24-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141100

  Bis-PEG11-NHS ester
  Bis-PEG11-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130512

  Br-PEG4-OH
  Br-PEG4-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130324

  Azido-PEG7-amine
  Azido-PEG7-amine is a non-cleavable 7 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG7-amine is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140406

  Aminooxy-PEG3-C2-NH-Boc
  Aminooxy-PEG3-C2-NH-Boc is a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096120

  Azide-PEG3-Desthiobiotin
  Azide-PEG3-Desthiobiotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG3-Desthiobiotin is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140390

  Boc-N-PEG2-MS
  Boc-N-PEG2-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141313

  m-PEG9-phosphonic acid ethyl ester
  m-PEG9-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134709

  Boc-NH-PEG5-Cl
  Boc-NH-PEG5-Cl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140028

  Propargyl-PEG4-Boc
  Propargyl-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141395

  m-PEG4-Boc
  m-PEG4-Boc is a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. m-PEG4-Boc is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-141008

  Tri(Mal-PEG2-amide)-amine
  Tri(Mal-PEG2-amide)-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138391

  Azido-PEG8-propargyl
  Azido-PEG8-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-140886

  1,1,1-Trifluoroethyl-PEG2-propargyl
  1,1,1-Trifluoroethyl-PEG2-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 1,1,1-Trifluoroethyl-PEG2-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140674

  m-PEG-Butyraldehyde (MW 5000)
  m-PEG-Butyraldehyde (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140617

  DNP-PEG3-azide		99.40%
  DNP-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DNP-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138424

  m-PEG15-amine
  m-PEG15-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116027

  Biotin-PEG3-acid
  Biotin-PEG3-acid is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W004640

  N-Boc-C1-PEG3-C3-NH2
  N-Boc-C1-PEG3-C3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096106

  CH2COOH-PEG6-CH2COOH
  CH2COOH-PEG6-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133383

  DSPE-PEG46-Folate
  DSPE-PEG46-Folate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135940

  m-PEG3-Mal
  m-PEG3-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140731

  TCO-PEG-TCO (MW 5000)
  TCO-PEG-TCO (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-PEG-TCO (MW 5000) is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-140547

  NH-bis-PEG3
  NH-bis-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130390

  Propargyl-PEG4-O-C1-NHS ester
  Propargyl-PEG4-O-C1-NHS ester (compound 8) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG4-O-C1-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132057

  Bis-PEG10-t-butyl ester
  Bis-PEG10-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141255

  Bis-PEG9-PFP ester
  Bis-PEG9-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140709

  m-PEG-thiol (MW 20000)
  m-PEG-thiol (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140336

  C-NH-Boc-C-Bis-(C-PEG1-Boc)
  C-NH-Boc-C-Bis-(C-PEG1-Boc) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140510

  N-Methyl-N-(t-Boc)-PEG4-acid
  N-Methyl-N-(t-Boc)-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135819

  Mal-PEG24-NHS ester
  Mal-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133457

  Biotin-PEG2-C1-aldehyde
  Biotin-PEG2-C1-aldehyde is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140799

  Azide-PEG8-alcohol
  Azide-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG8-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141020

  Bis-PEG12-acid
  Bis-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134712

  Methylacetamide-PEG3-NH2
  Methylacetamide-PEG3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132021

  Benzyl-PEG7-NHBoc
  Benzyl-PEG7-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140645

  Amine-PEG-CH2COOH (MW 5000)
  Amine-PEG-CH2COOH (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134689

  Propanol-PEG3-CH2OH
  Propanol-PEG3-CH2OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140171

  m-PEG5-sulfonic acid
  m-PEG5-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143855

  Biotin-PEG10-NHS ester		98.02%
  Biotin-PEG10-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132062

  Azido-PEG11-t-butyl ester
  Azido-PEG11-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG11-t-butyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-156385

  SCO-PEG8-NHS
  SCO-PEG8-NHS SCO is a PROTAC linker and belongs to the PEG class. SCO-PEG8-NHS SCO contains SCO and NHS esters that can be covalently bound to amino groups, respectively. SCO is often used to react with amino acid residues of proteins or peptides, particularly lysine.

• HY-140826

  Bromoacetamido-PEG5-azide
  Bromoacetamido-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromoacetamido-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141093

  Pyrene-PEG5-alcohol
  Pyrene-PEG5-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140273

  DBCO-PEG8-NHS ester
  DBCO-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG8-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140285

  DBCO-PEG9-amine
  DBCO-PEG9-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG9-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141406

  m-PEG5-2-methylacrylate
  m-PEG5-2-methylacrylate is a PEG- and Alkyl/ester-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130445

  m-PEG3-CH2COOH
  m-PEG3-CH2COOH is a PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141217

  m-PEG7-alcohol		98.33%
  m-PEG7-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141159

  TCO-PEG4-acid
  TCO-PEG4-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140322

  DBCO-mPEG (MW 30kDa)
  DBCO-mPEG (MW 30kDa) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-mPEG (MW 30kDa) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140889

  Biotin-PEG4-NHS ester
  Biotin-PEG4-NHS ester is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133352

  Mal-PEG5-mal
  Mal-PEG5-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141334

  Lipoamido-PEG12-acid
  Lipoamido-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130715

  tert-Butyl 11-aminoundecanoate
  tert-Butyl 11-aminoundecanoate (compound 6b) is a PROTAC linker, which refers to the PEG composition. tert-Butyl 11-aminoundecanoate can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-140253

  N-(Amino-PEG3)-N-bis(PEG3-Boc)
  N-(Amino-PEG3)-N-bis(PEG3-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140508

  m-PEG12-NH-C2-acid
  m-PEG12-NH-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040527

  Bromo-PEG4-bromide
  Bromo-PEG4-bromide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-128803

  Tos-PEG4-NH-Boc
  Tos-PEG4-NH-Boc (PROTAC Linker 7) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-134746

  Hexaethylene glycol dimethyl ether
  Hexaethylene glycol dimethyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096157

  I-PEG5-OH
  I-PEG5-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134681

  Fmoc-NH-PEG5-NH-Boc
  Fmoc-NH-PEG5-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141236

  HO-PEG20-OH
  HO-PEG20-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096129

  Cl-PEG4-acid
  Cl-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130568

  Mal-PEG1-PFP ester
  Mal-PEG1-PFP ester is a Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140951

  m-PEG12-DSPE
  m-PEG12-DSPE is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130857

  Mal-PEG24-acid
  Mal-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133371

  DBCO-NHCO-C4-NHS ester
  DBCO-NHCO-C4-NHS ester is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-C4-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-168870

  OH-PEG3-C2-Succinamic acid-2-(Methylamino)ethanol
  OH-PEG3-C2-Succinamic acid-2-(Methylamino)ethanol is a PROTAC Linker that can be used to synthesize PROTAC Tamoxifen-PEG-Clozapine (HY-168869)[1].

• HY-141072

  N-Methyl-N'-(hydroxy-PEG2)-Cy5
  N-Methyl-N'-(hydroxy-PEG2)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141360

  (2-Pyridyldithio)-PEG4-propargyl
  (2-Pyridyldithio)-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132078

  Azido-PEG7-acid
  Azido-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140226

  m-PEG10-amine
  m-PEG10-amine is a non-cleavable 10 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. m-PEG10-amine is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130457

  m-PEG4-MS
  m-PEG4-MS is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG4-MS is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-133304

  HO-PEG10-CH2COOH
  HO-PEG10-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140256

  NH-bis(PEG2-C2-Boc)
  NH-bis(PEG2-C2-Boc) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040132

  Boc-NH-PEG4-CH2CH2COOH
  Boc-NH-PEG4-CH2CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1]. Boc-NH-PEG4-CH2CH2COOH is also a cleavable ADC linker used as a linker for antibody-drug conjugates (ADC)[2].

• HY-161020

  m-PEG12-OTs
  m-PEG12-Ots is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140440

  Fmoc-aminooxy-PEG4-acid
  Fmoc-aminooxy-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140594

  m-PEG3-S-PEG4-propargyl
  m-PEG3-S-PEG4-propargyl is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. m-PEG3-S-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133336

  Amino-PEG12-CH2-Boc
  Amino-PEG12-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140597

  Propargyl-PEG4-S-PEG4-acid
  Propargyl-PEG4-S-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-S-PEG4-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141388

  Bromoacetamido-PEG3-C2-Boc
  Bromoacetamido-PEG3-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141224

  m-PEG23-alcohol
  m-PEG23-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140666

  Azide-PEG-azide (MW 10000)
  Azide-PEG-azide (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-azide (MW 10000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140059

  Propargyl-PEG3-methane
  Propargyl-PEG3-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-methane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140765

  Azido-PEG4-NHS-ester
  Azido-PEG4-NHS-ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-NHS-ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-144082

  C18-PEG13-acid
  C18-PEG13-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096153

  m-PEG3-phosphonic acid
  m-PEG3-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140744

  Benzyl-PEG5-azide
  Benzyl-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzyl-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130595

  Benzyl-PEG4-acid
  Benzyl-PEG4-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140452

  Azido-PEG2-C2-acid
  Azido-PEG2-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C2-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138346

  Benzyl-PEG4-Boc
  Benzyl-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138483

  THP-PEG9-OH
  THP-PEG9-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140258

  NH-bis(PEG4-Boc)
  NH-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141305

  Diethoxy-phosphorylethyl-PEG5-ethylphosphonic acid
  Diethoxy-phosphorylethyl-PEG5-ethylphosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133378

  Biotin-PEG24-NHS ester
  Biotin-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141166

  TCO-PEG3-NHS ester
  TCO-PEG3-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140003

  Tetraethyl butane-1,4-diylbis(phosphonate)
  Tetraethyl butane-1,4-diylbis(phosphonate) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130180

  Propargyl-PEG6-NH2
  Propargyl-PEG6-NH2 is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG6-NH2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-135958

  DBCO-NHCO-PEG6-Biotin		98.44%
  DBCO-NHCO-PEG6-Biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG6-Biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W018174

  m-PEG3-Amine
  m-PEG3-Amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG3-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-138418

  Azido-PEG7-CH2COOH
  Azido-PEG7-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-145255

  Tri(TLR4-IN-C34-C2-amide-C3-amide-PEG1)-amide-C3-COOH
  Tri(TLR4-IN-C34-C2-amide-C3-amide-PEG1)-amide-C3-COOH is a linker that incorporates TLR4 inhibitor TLR4-IN-C34. TLR4-IN-C34 inhibits TLR4 in enterocytes and macrophages, and reduces systemic inflammation in mouse models of endotoxemia and necrotizing enterocolitis[1].

• HY-141282

  Methyltetrazine-PEG24-Boc
  Methyltetrazine-PEG24-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140613

  Boc-PEG4-sulfone-PEG4-Boc
  Boc-PEG4-sulfone-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133335

  Amino-PEG10-CH2-Boc
  Amino-PEG10-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130142A

  Biotinyl-NH-PEG3-C3-amido-C3-COOH		99.91%
  Biotinyl-NH-PEG3-C3-amido-C3-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141061

  N-PEG3-N'-(azide-PEG3)-Cy5
  N-PEG3-N'-(azide-PEG3)-Cy5 (chloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-PEG3-N'-(azide-PEG3)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140833

  m-PEG36-azide
  m-PEG36-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG36-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-120237

  m-PEG7-Amine
  m-PEG7-Amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG7-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-140546

  N-(Azido-PEG3)-N-Fluorescein-PEG4-acid
  N-(Azido-PEG3)-N-Fluorescein-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-Fluorescein-PEG4-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140436

  t-Boc-Aminooxy-PEG7-bromide
  t-Boc-Aminooxy-PEG7-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132104

  THP-PEG12-alcohol
  THP-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134744

  Boc-Pyrrolidine-PEG2-COOH
  Boc-Pyrrolidine-PEG2-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133388

  Boc-NH-C12-NH2
  Boc-NH-C12-NH2 is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130599

  Hydroxy-PEG2-CH2-Boc
  Hydroxy-PEG2-CH2-Boc is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140037

  Mal-​PEG4-​propargyl		99.68%
  Mal-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Mal-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-134700

  DSPE-PEG14-COOH
  DSPE-PEG14-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140497

  Hydroxy-PEG2-CH2COOH
  Hydroxy-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W010975

  Fmoc-Lys-OH hydrochloride
  Fmoc-Lys-OH hydrochloride is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-Lys-OH hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-130880

  HS-PEG11-CH2CH2N3
  HS-PEG11-CH2CH2N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. HS-PEG11-CH2CH2N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140257

  NH-bis(PEG3-Boc)
  NH-bis(PEG3-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140791

  Azide-PEG9-amido-C16-Boc
  Azide-PEG9-amido-C16-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG9-amido-C16-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140771

  Azido-PEG1-PFP ester
  Azido-PEG1-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-PFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133406

  exo BCN-O-PNB
  exo BCN-O-PNB is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. exo BCN-O-PNB is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-132116

  Biotin-PEG3-methyl ethanethioate
  Biotin-PEG3-methyl ethanethioate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134720

  Amine-PEG4-Desthiobiotin		99.23%
  Amine-PEG4-Desthiobiotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-33615

  Methyl azetidine-3-carboxylate hydrochloride
  Methyl azetidine-3-carboxylate hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Methyl azetidine-3-carboxylate hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs<

• HY-141131

  Propargyl-PEG2-beta-D-glucose
  Propargyl-PEG2-beta-D-glucose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140522

  2-(Azido-PEG3-amido)-1,3-bis(carboxylethoxy)propane
  2-Azido-PEG3-amido-13-biscarboxylethoxypropane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 2-(Azido-PEG3-amido)-1,3-bis(carboxylethoxy)propane is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133470

  Fmoc-NH-PEG4-alcohol
  Fmoc-NH-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141312

  m-PEG5-phosphonic acid ethyl ester
  m-PEG5-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132094

  Azido-PEG9-S-methyl ethanethioate
  Azido-PEG9-S-methyl ethanethioate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-S-methyl ethanethioate is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-120781

  Fluorescein-thiourea-PEG4-azide
  Fluorescein-thiourea-PEG4-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Fluorescein-thiourea-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130886

  N3-PEG12-Hydrazide
  N3-PEG12-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N3-PEG12-Hydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133351

  m-PEG25-Hydrazide
  m-PEG25-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130200

  NH2-PEG8-OH
  NH2-PEG8-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141193

  N-Boc-PEG12-alcohol
  N-Boc-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140599

  Propargyl-PEG4-S-PEG4-Boc
  Propargyl-PEG4-S-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-S-PEG4-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132048

  Benzyl-PEG7-MS
  Benzyl-PEG7-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130863

  Mal-NH-PEG8-CH2CH2COOPFP ester
  Mal-NH-PEG8-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140345A

  L-Homopropargylglycine hydrochloride
  L-Homopropargylglycine hydrochloride is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs. L-homopropargylglycine hydrochloride is an amino acid analog of methionine containing an alkyne moiety that can undergo a classic click chemical reaction with azide containing Alexa Fluor[1][2].

• HY-133230

  Propargyl-PEG10-amine
  Propargyl-PEG10-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG10-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140656D

  Biotin-PEG-Biotin (MW 5000)
  Biotin-PEG-Biotin (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096080

  t-Butyl acetate-PEG2-CH2COOH
  t-Butyl acetate-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140703

  m-PEG-triethoxysilane (MW 2000)
  m-PEG-triethoxysilane (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-21577

  Tris[[2-(tert-butoxycarbonyl)ethoxy]methyl]methylamine
  Tris[[2-(tert-butoxycarbonyl)ethoxy]methyl]methylamine is a cleavable PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-Tri-(t-butoxycarbonylethoxymethyl)-methane is also a PEG/Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-22340

  Azido-PEG4-alcohol
  Azido-PEG4-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Azido-PEG4-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133376

  DBCO-NHCO-PEG12-biotin
  DBCO-NHCO-PEG12-biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG12-biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130342

  HO-PEG11-OH
  HO-PEG11-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140541

  Tri-(PEG1-C2-acid)
  Tri-(PEG1-C2-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141051

  N-(m-PEG9)-N'-(propargyl-PEG8)-Cy5
  N-(m-PEG9)-N'-(propargyl-PEG8)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG9)-N'-(propargyl-PEG8)-Cy5 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W587352

  7-Iodohept-1-yne
  7-Iodohept-1-yne is a PROTAC Linker that can be used to synthesize PROTAC QZ2135 (HY-170852)[1].

• HY-140751

  Benzyl-PEG5-MS
  Benzyl-PEG5-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140989

  Mal-PEG1-bromide
  Mal-PEG1-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141197

  N-Boc-PEG23-bromide
  N-Boc-PEG23-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W008568

  Fmoc-amino-PEG3-CH2COOH
  Fmoc-amino-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141247

  1,1,1-Trifluoroethyl-PEG4-alcohol
  1,1,1-Trifluoroethyl-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132098

  Bis-propargyl-PEG10
  Bis-propargyl-PEG10 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-propargyl-PEG10 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140432

  Boc-Aminooxy-PEG3-azide
  Boc-Aminooxy-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-Aminooxy-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140909

  Biotin-PEG11-Mal		98.12%
  Biotin-PEG11-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141346

  S-acetyl-PEG3-Boc
  S-acetyl-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141022

  Bis-PEG14-acid
  Bis-PEG14-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141289

  N-(Propanoic acid)-N-bis(m-PEG12)
  N-(Propanoic acid)-N-bis(m-PEG12) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140323

  Tetraethyl heptane-1,7-diylbis(phosphonate)
  Tetraethyl heptane-1,7-diylbis(phosphonate) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140927

  Azido-C3-UV-biotin
  Azido-C3-UV-biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-C3-UV-biotin is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140007

  Acrylate-PEG-NH2 (MW 2000)
  Acrylate-PEG-NH2 (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134694

  Bromo-PEG2-NH2 hydrobromide
  Bromo-PEG2-NH2 hydrobromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132034

  Benzyl-PEG6-t-butyl ester
  Benzyl-PEG6-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141322

  PEG4-bis(phosphonic acid diethyl ester)
  PEG4-bis(phosphonic acid diethyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130563

  Propargyl-PEG3-CH2COOH
  Propargyl-PEG3-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-CH2COOH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-135930

  Boc-NH-PEG10-CH2CH2NH2
  Boc-NH-PEG10-CH2CH2NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141004

  3,4-Dibromo-Mal-PEG2-amine
  3,4-Dibromo-Mal-PEG2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140355

  Azide-PEG12-Tos
  Azide-PEG12-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG12-Tos is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W040168

  Amino-PEG2-C2-acid
  Amino-PEG2-C2-acid is a cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG2-C2-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141101

  Fmoc-PEG12-NHS ester
  Fmoc-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135941

  Biotin-PEG9-NHS Ester
  Biotin-PEG9-NHS Ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133285

  m-PEG10-CH2COOH
  m-PEG10-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130334

  Mal-PEG8-acid
  Mal-PEG8-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-113336B

  (±)15-HETE
  (±)15-HETE is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-23105

  Amino-PEG6-amine
  Amino-PEG6-amine is a PEG-based (6 units) PROTAC linker can be used in the synthesis of PROTACs.

• HY-138323

  Benzyl-PEG36-alcohol
  Benzyl-PEG36-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130231

  m-PEG2-acid
  m-PEG2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-42617

  Hydroxy-PEG4-CH2-Boc
  Hydroxy-PEG4-CH2-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-123609

  Pyrene-amido-PEG4-azide
  Pyrene-amido-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Pyrene-amido-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138333

  Azido-PEG7-PFP ester
  Azido-PEG7-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-PFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140417

  t-Boc-Aminooxy-PEG4-NHS ester
  t-Boc-Aminooxy-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190857

  N-Boc-PEG10-alcohol
  N-Boc-PEG10-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140282

  DBCO-PEG1-amine
  DBCO-PEG1-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG1-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140236

  Boc-NH-PEG23-NH2
  Boc-NH-PEG23-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140232

  Boc-NH-PEG7-NH2
  Boc-NH-PEG7-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140758

  Azido-PEG9-NHS ester
  Azido-PEG9-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130589

  Bromo-PEG2-bromide		99.25%
  Bromo-PEG2-bromide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133006

  Fluorescein-PEG5-acid
  Fluorescein-PEG5-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138396

  Rhodamine B PEG2-NH2
  Rhodamine B PEG2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130860

  Mal-NH-PEG2-CH2CH2COOPFP ester
  Mal-NH-PEG2-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140865

  2-(Azido-PEG3-amido)-1,3-bis(NHS ester)
  2-(Azido-PEG3-amido)-1,3-bis(NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 2-(Azido-PEG3-amido)-1,3-bis(NHS ester) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141295

  PEG3-bis-(ethyl phosphonate)
  PEG3-bis-(ethyl phosphonate) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140008

  DOTA-PEG5-amine
  DOTA-PEG5-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141191

  N-Boc-PEG5-alcohol
  N-Boc-PEG5-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132093

  Azido-PEG5-S-methyl ethanethioate
  Azido-PEG5-S-methyl ethanethioate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-S-methyl ethanethioate is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096092

  BocNH-PEG5-CH2CH2Br
  BocNH-PEG5-CH2CH2Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138756

  PC DBCO-PEG4-NHS ester
  PC DBCO-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. PC DBCO-PEG4-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138461

  Azido-PEG1		99.95%
  Azido-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140677

  mPEG-amine (MW 5000)
  mPEG-amine (mPEG-NH2) (MW 5000) is a modifier that can replace the sulfonic acid portion of the dye molecule to increase the water solubility of long-wavelength voltage-sensitive dyes (VSD) or Pittsburgh (PGH) dyes. mPEG-amine can also form amide bonds with carboxyl groups on the surface of microspheres under the mediation of EDC and Sulfo-NHS to form a PEG coating on the surface of fluorescent microspheres for large-scale rotational cytoplasmic flow studies[1][2].

• HY-163821

  HO-CONH-C3-PEG3-NH2
  HO-CONH-C3-PEG3-NH2 is a linker, that can be used for synthesis of PROTAC Degrader 22-SLF (HY-163807)[1].

• HY-130467

  DNP-NH-PEG2-C2-acid
  DNP-NH-PEG2-C2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W004896

  Boc-NH-PEG2		99.78%
  Boc-NH-PEG2 (PROTAC Linker 11) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130657

  m-PEG5-nitrile
  m-PEG5-nitrile is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-135926

  Cbz-NH-PEG1-CH2CH2COOH		98.80%
  Cbz-NH-PEG1-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140621

  m-PEG3-0-benzaldehyde
  m-PEG3-0-benzaldehyde is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159682

  3,8-Diazabicyclo[3.2.1]octane-4-pyrimidine-piperidine-cyclohexene-Bpin
  3,8-Diazabicyclo[3.2.1]octane-4-pyrimidine-piperidine-cyclohexene-Bpin is a PROTAC linker. 3,8-Diazabicyclo[3.2.1]octane-4-pyrimidine-piperidine-cyclohexene-Bpin can be used in the synthesis PROTAC SMARCA2/4-degrader-29 (HY-162743)[1].

• HY-141405

  m-PEG7-4-nitrophenyl carbonate
  m-PEG7-4-nitrophenyl carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-43055

  Cl-PEG2-acid
  Cl-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135083

  BDP FL-PEG4-amine
  BDP FL-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140065

  endo-BCN-PEG8-acid
  endo-BCN-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG8-acid is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-126883

  Tr-PEG4-OH
  Tr-PEG4-OH is a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs).

• HY-126951

  Aminooxy-PEG2-alcohol
  Aminooxy-PEG2-alcohol is a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Aminooxy-PEG2-alcohol is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-W016735

  Azido-PEG3-alcohol
  Azido-PEG3-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Azido-PEG3-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133358

  Cbz-NH-PEG12-C2-acid
  Cbz-NH-PEG12-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140733

  Dioxoisoindolin-O-PEG-OMe (MW 2000)
  Dioxoisoindolin-O-PEG-OMe (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140635

  Ald-CH2-PEG8-azide
  Ald-CH2-PEG8-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Ald-CH2-PEG8-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138468

  Boc-PEG25-benzyl
  Boc-PEG25-benzyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140983

  m-PEG12-Mal
  m-PEG12-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130152

  Ms-PEG7-MS
  Ms-PEG7-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133318

  Azido-PEG16-acid
  Azido-PEG16-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG16-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133295

  Thiol-PEG10-alcohol
  Thiol-PEG10-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W034599

  Boc-C14-COOH
  Boc-C14-COOH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-C14-COOH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-133329

  Amino-PEG15-amine
  Amino-PEG15-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040246

  Fmoc-NH-PEG6-CH2CH2COOH		99.29%
  Fmoc-NH-PEG6-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-W015088

  Amino-PEG3-C2-Amine
  Amino-PEG3-C2-Amine is a PEG-based (3 units) PROTAC linker can be used in the synthesis of PROTACs.

• HY-130621

  OTs-C6-OBn		98.07%
  OTs-C6-OBn is an alkyl chain-based PROTAC linker can be used in the synthesis of PROTAC SGK3 degrader-1 (HY-125878)[1].

• HY-140081

  Boc-gly-PEG3-endo-BCN
  Boc-gly-PEG3-endo-BCN is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-gly-PEG3-endo-BCN is also a cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2]. Boc-gly-PEG3-endo-BCN is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-161613

  7-Bromoheptanoyl chloride
  7-Bromoheptanoyl chloride is a linker of PROTAC EGFR degrader 9 (HY-161536)[1].

• HY-140284

  DBCO-PEG6-amine
  DBCO-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG6-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138395

  DSPE-PEG6-Mal
  DSPE-PEG6-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-156389

  (R)-TCO4-PEG2-NH2
  (R)-TCO4-PEG2-NH2 is a PROTAC linker and belongs to the PEG class. (R)-TCO4-PEG2-NH2 contains a TCO group that specifically "clicks" with the tetrazine group.

• HY-144081

  HO-PEG18-OH
  HO-PEG18-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140239

  Amino-PEG4-benzyl ester
  Amino-PEG4-benzyl ester is a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W840791

  1-(2-Bromoethyl)piperazine
  1-(2-Bromoethyl)piperazine is a PROTAC linker can be used in the synthesis of PROTAC (HY-168634)[1].

• HY-141016

  (S,R,S)-AHPC-PEG2-acid		98.88%
  (S,R,S)-AHPC-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141073

  N-(m-PEG4)-N'-(hydroxy-PEG2)-Cy5
  N-(m-PEG4)-N'-(hydroxy-PEG2)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W017755

  (R)-Azetidine-2-carboxylic acid
  (R)-Azetidine-2-carboxylic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). (R)-Azetidine-2-carboxylic acid is also a alkyl chain-based PROTAC linker that can be

• HY-120175

  Nonaethylene glycol monomethyl ether
  Nonaethylene glycol monomethyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-400145

  mPEG45-Epoxide
  mPEG45-Epoxide is a PEG derivative containing polyether units. mPEG45-Epoxide can be used to synthesize PROTAC molecules[1].

• HY-133382

  DSPE-PEG46-DBCO
  DSPE-PEG46-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DSPE-PEG46-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140904

  Biotin-PEG12-TFP ester
  Biotin-PEG12-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133475

  TCO-PEG5-maleimide		99.46%
  TCO-PEG5-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-PEG5-maleimide is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-138739

  Azido-PEG10-propargyl
  Azido-PEG10-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-112559

  Bis-PEG2-acid
  Bis-PEG2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W096077

  Benzyl-PEG7-amine
  Benzyl-PEG7-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-145246

  Biotin-PEG8-Vidarabine
  Biotin-PEG8-Vidarabine is a PEG-based linker that incorporates adenosine analog Vidarabine. Vidarabine is an antiviral agent which is active against herpes simplex and varicella zoster viruses[1].

• HY-130387

  Propargyl-PEG4-Tos
  Propargyl-PEG4-Tos is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG4-Tos is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1][2]. Propargyl-PEG4-Tos is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-126717

  SPDP-PEG6-NHS ester
  SPDP-PEG6-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141090

  Carboxyrhodamine 110-PEG3-Azide
  Carboxyrhodamine 110-PEG3-Azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Carboxyrhodamine 110-PEG3-Azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138713

  Benzyl-PEG10-Ots
  Benzyl-PEG10-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-126959

  Biotin-PEG4-acid
  Biotin-PEG4-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-130346

  DBCO-PEG4-DBCO
  DBCO-PEG4-DBCO is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-PEG4-DBCO is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. DBCO-PEG4-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133469

  Methyltetrazine-PEG8-N3
  Methyltetrazine-PEG8-N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-PEG8-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140280

  DBCO-PEG1
  DBCO-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG1 is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W190901

  Amino-PEG11-acid
  Amino-PEG11-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140858

  Azido-PEG4-4-nitrophenyl carbonate
  Azido-PEG4-4-nitrophenyl carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-4-nitrophenyl carbonate is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140263

  NH-bis(m-PEG4)
  NH-bis(m-PEG4) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133356

  Boc-NH-PEG15-azide
  Boc-NH-PEG15-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG15-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-108371

  Boc-C1-PEG2-C4-Cl		99.81%
  Boc-C1-PEG2-C4-Cl (PROTAC Linker 1) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140067

  endo-BCN-PEG2-C2-NHS ester
  endo-BCN-PEG2-C2-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130867

  Mal-NH-PEG16-CH2CH2COOPFP ester
  Mal-NH-PEG16-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140287

  DBCO-C2-PEG4-amine
  DBCO-C2-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-C2-PEG4-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-158382

  NH2-C4-PEG4-C5-COOH
  NH2-C4-PEG4-C5-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141238

  HO-PEG24-OH
  HO-PEG24-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168303

  (S)-4-(1-(Pyrrolidin-3-ylmethyl)piperidin-4-yl)aniline
  (S)-4-(1-(Pyrrolidin-3-ylmethyl)piperidin-4-yl)aniline is a connector for PROTAC, which can be used to synthesize (R)-NX-2127 (HY-153220A) and is utilized in research within the field of malignant tumors[1].

• HY-132013

  Benzyl-PEG8-amine
  Benzyl-PEG8-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140996

  Bis-Mal-PEG19
  Bis-Mal-PEG19 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-44141

  tert-Butyl 3-(2-iodoethoxy)propanoate
  tert-Butyl 3-(2-iodoethoxy)propanoate is a PROTAC linker, which refers to the PEG composition. tert-Butyl 3-(2-iodoethoxy)propanoate can be used in the synthesis of PROTAC FAK degrader 1 (HY-119932)[1].

• HY-140200

  Amino-PEG36-Boc
  Amino-PEG36-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138706

  Azido-PEG8-azide		98.20%
  Azido-PEG8-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Azido-PEG8-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138528

  Thiol-C9-PEG5-acid
  Thiol-C9-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140716

  HO-PEG-amine (MW 5000)
  HO-PEG-amine (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140006

  Diketone-PEG4-PFP ester
  Diketone-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140611

  Propargyl-peg3-sulfone-peg3-propargyl
  Propargyl-peg3-sulfone-peg3-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-peg3-sulfone-peg3-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141208

  Hydroxy-PEG1-CH2-Boc		99.49%
  Hydroxy-PEG1-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141032

  N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy3
  N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy3 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140616

  DNP-PEG6-Boc
  DNP-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-40151

  Methyl 1-Boc-azetidine-3-carboxylate
  Methyl 1-Boc-azetidine-3-carboxylate is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Methyl 1-Boc-azetidine-3-carboxylate is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1

• HY-122696

  CH2COOH-PEG3-CH2COOH
  CH2COOH-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130659

  Amino-PEG8-amine
  Amino-PEG8-amine is a PEG-based (8 units) PROTAC linker can be used in the synthesis of PROTACs.

• HY-140375

  Tos-PEG3-C2-methyl ester
  Tos-PEG3-C2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140411

  Bis-aminooxy-PEG7
  Bis-aminooxy-PEG7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141160

  TCO-PEG6-acid
  TCO-PEG6-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130910

  Propargyl-PEG8-SH
  Propargyl-PEG8-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG8-SH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-115414

  Bis-propargyl-PEG8
  Bis-propargyl-PEG8 (compound 16e) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Bis-propargyl-PEG8 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W092043

  TLR4-IN-C34-C2-COOH
  TLR4-IN-C34-C2-COOH is a linker that incorporates TLR4 inhibitor TLR4-IN-C34 (HY-107575). TLR4-IN-C34 inhibits TLR4 in enterocytes and macrophages, and reduces systemic inflammation in mouse models of endotoxemia and necrotizing enterocolitis[1].

• HY-168039

  Boc-NH-Piperidine-C5-OH
  Boc-NH-Piperidine-C5-OH is a PROTAC linker. Boc-NH-Piperidine-C5-OH can be used in the synthesis of PROTAC PIN1 degrader-1 (HY-168037)[1].

• HY-140895

  Biotin-PEG4-amine
  Biotin-PEG4-amine is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130555

  PEG8-Tos
  PEG8-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132089

  N-Boc-PEG3-t-butyl ester
  N-Boc-PEG3-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133403A

  Biotin-C1-PEG3-C3-amine TFA
  Biotin-C1-PEG3-C3-amine (TFA) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140210

  Amino-PEG9-amine
  Amino-PEG9-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141203

  Hydroxy-PEG6-Boc
  Hydroxy-PEG7-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132114

  Biotin-PEG3-pyridinrthiol
  Biotin-PEG3-pyridinrthiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140612

  Propargyl-PEG4-Sulfone-PEG4-Boc
  Propargyl-PEG4-Sulfone-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-Sulfone-PEG4-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W190796A

  Mal-PEG3-NH2 TFA
  Mal-PEG3-NH2 TFA is a linear heterobifunctional PEG crosslinker with Maleimide (HY-W007324) and amine. Mal-PEG3-NH2 TFA is a non-degradable (non-cleavable) PROTAC linker[1].

• HY-133348

  m-PEG12-Hydrazide
  m-PEG12-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140845

  1,1,1-Trifluoroethyl-PEG2-azide
  1,1,1-Trifluoroethyl-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 1,1,1-Trifluoroethyl-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141096

  Acid-PEG9-NHS ester
  Acid-PEG9-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138487

  Benzyl-PEG5-acid
  Benzyl-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W005056

  Boc-NH-PEG2-CH2COOH
  Boc-NH-PEG2-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130458

  EGNHS
  EGNHS is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143842

  Mal-amido-PEG3-alcohol
  Mal-amido-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133472

  DBCO-NHCO-PEG3-Fmoc
  DBCO-NHCO-PEG3-Fmoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG3-Fmoc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W096089

  Benzyl-PEG3-acid
  Benzyl-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096162A

  NH2-PEG2-methyl acetate hydrochloride
  NH2-PEG2-methyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130768

  N-(Azido-PEG3)-N-Fluorescein-PEG3-acid
  N-(Azido-PEG3)-N-Fluorescein-PEG3-acid is a PEG-based PROTAC linker which contains azide, fluorescein and carboxylic acid moieties. N-(Azido-PEG3)-N-Fluorescein-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-107608S1

  Leukotriene B4-d5
  Leukotriene B4-d5 (LTB4-d5) is deuterium labeled Leukotriene B4. Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases. Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2][3][4].

• HY-133281

  m-PEG16-Br
  m-PEG16-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W006629

  (4S)​-4-Hydroxy-D-proline methyl ester hydrochloride
  (4S)-4-Hydroxy-D-proline methyl ester hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). (4S)-4-Hydroxy-D-proline methyl ester hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-W071584

  N-Boc-PEG6-alcohol
  N-Boc-PEG6-alcohol is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG6-alcohol is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-138472

  Azido-PEG4-THP
  Azido-PEG4-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-THP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-143819

  Propargyl-PEG-amine
  Propargyl-PEG-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140707

  m-PEG-thiol (MW 5000)		99.90%
  m-PEG-thiol (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120397

  Bis-propargyl-PEG4
  Bis-propargyl-PEG4 is a PEG-based PROTAC linker used in the synthesis of PROTACs. Bis-propargyl-PEG4 is used for the synthesis of demethylvancomycin dimers[1][2]. Bis-propargyl-PEG4 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130216

  THP-PEG3-OH
  THP-PEG3-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140303

  DBCO-PEG9-DBCO
  DBCO-PEG9-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG9-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141050

  N-PEG3-N'-(propargyl-PEG4)-Cy5
  N-PEG3-N'-(propargyl-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-PEG3-N'-(propargyl-PEG4)-Cy5 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140917

  Dde Biotin-PEG4-Picolyl azide
  Dde Biotin-PEG4-Picolyl azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Dde Biotin-PEG4-Picolyl azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140804

  Azide-PEG16-alcohol
  Azide-PEG16-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG16-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096139

  Br-PEG3-ethyl acetate
  Br-PEG3-ethyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133277

  m-PEG2-Br
  m-PEG2-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138741

  Azido-PEG12-propargyl
  Azido-PEG12-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG12-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-130447

  Amino-PEG5-amine
  Amino-PEG5-amine is a PEG-based (5 units) PROTAC linker can be used in the synthesis of PROTACs.

• HY-140429

  t-Boc-Aminooxy-PEG7-amine
  t-Boc-Aminooxy-PEG7-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138744

  DBCO-PEG13-NHS ester
  DBCO-PEG13-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG13-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-117009

  Bis-PEG9-NHS ester
  Bis-PEG9-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG9-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-60263

  (3R)-3-Pyrrolidinemethanol
  (3R)-3-Pyrrolidinemethanol is a molecular building block and the linker of NRX-0492 (HY-153357).

• HY-23212

  2-Amino-1,3-bis(carboxylethoxy)propane
  2-Amino-13-bis(carboxylethoxy)propane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133282

  m-PEG24-Br
  m-PEG24-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140660

  Azide-PEG-alcohol (MW 2000)
  Azide-PEG-alcohol (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-alcohol (MW 2000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-42640

  Boc-NH-PEG4-CH2COOH
  Boc-NH-PEG4-CH2COOH is a cleavable ADC linker used as a linker for antibody-drug conjugates (ADC). Boc-NH-PEG4-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140672

  m-PEG-acrylate (MW 20000)
  m-PEG-acrylate (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-144076

  t-Boc-amido-PEG10-acid
  t-Boc-amido-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141200

  Bromoacetamido-PEG3-NH-Boc
  Bromoacetamido-PEG3-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-113828

  Biotin-PEG2-C4-alkyne
  Biotin-PEG2-C4-alkyne is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Biotin-PEG2-C4-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141232

  Decaethylene glycol
  Decaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130144

  Ald-CH2-PEG3-azide
  Ald-CH2-PEG3-azide is a cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Ald-CH2-PEG3-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Ald-CH2-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140556

  N-Boc-N-bis(PEG4-azide)
  N-Boc-N-bis(PEG4-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Boc-N-bis(PEG4-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-144080

  Bromo-PEG5-CH2COOtBu
  Bromo-PEG5-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140605

  m-PEG3-Sulfone-PEG3-acid
  m-PEG3-Sulfone-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117186

  Bis-propargyl-PEG6
  Bis-propargyl-PEG6 is a PEG-based PROTAC linker used in the synthesis of PROTACs. Bis-propargyl-PEG6 can be used to synthesize the polymer linked multimers of guanosine-3', 5'-cyclic monophosphates[1]. Bis-propargyl-PEG6 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140913

  Biotin-PEG23-azide
  Biotin-PEG23-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG23-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-40152

  1-Boc-azetidine-3-yl-methanol
  1-Boc-azetidine-3-yl-methanol is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-Boc-azetidine-3-yl-methanol is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]

• HY-133353

  Mal-PEG6-mal
  Mal-PEG6-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134683

  Ms-PEG3-NHS ester
  Ms-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133297

  Thiol-PEG12-alcohol
  Thiol-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140497A

  Hydroxy-PEG2-CH2COONa
  Hydroxy-PEG2-CH2COONa is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140520

  N-(acid-PEG3)-N-bis(PEG3-azide)		98.07%
  N-(acid-PEG3)-N-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(acid-PEG3)-N-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138721

  Fmoc-PEG10-NHS ester
  Fmoc-PEG10-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140505

  m-PEG3-Propanoyl chloride
  m-PEG3-Propanoyl chloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141159A

  (S)-TCO-PEG4-acid
  (S)-TCO-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190795

  Benzyl-PEG3-amine
  Benzyl-PEG3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140499

  m-PEG9-acid
  m-PEG9-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141044

  Cy5-PEG6-NHS ester		99.24%
  Cy5-PEG6-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133438

  BCN-PEG4-hydrazide
  BCN-PEG4-hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. BCN-PEG4-hydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.

• HY-140649

  PEG-bis-amine (MW 20000)
  PEG-bis-amine (Poly(ethylene glycol)-bis-amine) (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141319

  Thiol-PEG3-phosphonic acid ethyl ester
  Thiol-PEG3-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132043

  Propargyl-PEG5-PFP ester
  Propargyl-PEG5-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-PFP ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140175

  Butoxycarbonyl-PEG5-sulfonic acid
  Butoxycarbonyl-PEG5-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140830

  m-PEG12-azide
  m-PEG12-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG12-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140182

  Amino-PEG24-acid
  Amino-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140351

  Azide-PEG4-Tos		99.59%
  Azide-PEG4-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG4-Tos is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W004816

  Bis-Tos-PEG4		99.50%
  Bis-Tos-PEG4 (PROTAC Linker 16) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-168686

  6-Hydroxy-1-(4-(2-hydroxyethyl)piperazin-1-yl)hexan-1-one
  6-Hydroxy-1-(4-(2-hydroxyethyl) piperazin-1-yl) hexan-1-one is the linker for PROTAC METTL3-14 degrader 1 (HY-162282)[1].

• HY-140157

  N-Me-N-bis(PEG4-C2-Boc)
  N-Me-N-bis(PEG4-C2-Boc) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141275

  Methyltetrazine-PEG5-alkyne
  Methyltetrazine-PEG5-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140326

  Hexane-1,6-diyldiphosphonic acid
  Hexane-1,6-diyldiphosphonic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W042579

  TBDMS-PEG4-OH
  TBDMS-PEG4-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096114

  Acid-PEG8-S-S-PEG8-acid
  Acid-PEG8-S-S-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141204

  Hydroxy-PEG7-Boc
  Hydroxy-PEG7-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168315

  (5-(Bromomethyl)pyrazin-2-yl)methanol
  (5-(Bromomethyl)pyrazin-2-yl)methanol is a linker, that can be used for synthesis of PROTAC degrader BCPyr (HY-142621)[1].

• HY-136158A

  6-Maleimidocaproic acid sulfo-NHS sodium		98.91%
  6-Maleimidocaproic acid sulfo-NHS (Sulfo-EMCS) sodium is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140329

  6-Bromohexylphosphonic acid
  6-Bromohexylphosphonic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-65039

  Boc-Hyp-OMe
  Boc-Hyp-OMe is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-Hyp-OMe is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2].

• HY-133212

  Mal-PEG8-Boc
  Mal-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132081

  Benzyl-PEG10-t-butyl ester
  Benzyl-PEG10-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140749

  BnO-PEG5-Boc
  BnO-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133287

  m-PEG36-OH
  m-PEG36-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141119

  Boc-NH-PEG4-NHS ester
  Boc-NH-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140176

  Amino-PEG10-acid
  Amino-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138311

  Boc-NH-PEG-Thiol (MW 10000)
  Boc-NH-PEG-Thiol (MW 10000) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-107608S

  Leukotriene B4-d4
  Leukotriene B4-d4 is the deuterium labeled Leukotriene B4. Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases. Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2][3].

• HY-23408

  Tos-PEG3
  Tos-PEG3 is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Tos-PEG3 (structure 1) can be used for the synthesis of 3'-aminooxy oligonucleotides solid supports[1].

• HY-140923

  Biotin-PEG4-amide-Alkyne
  Biotin-PEG4-amide-Alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-amide-Alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130481

  Propargyl-PEG4-acid
  Propargyl-PEG4-acid is a PEG-based PROTAC linker can be used in the synthesis of BTK-IAP PROTACs Ibrutinib (HY-10997)-based PROTAC 2 and an analogue PROTAC 3. PROTAC 3 causes BTK degradation with a DC50 of 200 nM in THP-1 cells[1]. Propargyl-PEG4-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141113

  m-PEG4-O-NHS ester
  m-PEG4-O-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-23417

  PEG5-Tos
  PEG5-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130888

  (+)-Biotin-ONP
  (+)-Biotin-ONP is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130490

  Biotin-bis-amido-SS-NHS
  Biotin-bis-amido-SS-NHS is an Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-124318

  SMPH Crosslinker
  SMPH Crosslinker is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140754

  Bromoacetamido-PEG5-DOTA		98.02%
  Bromoacetamido-PEG5-DOTA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138470

  Azido-PEG2-C6-Cl
  Azido-PEG2-C6-Cl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C6-Cl is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134676

  Propenyl-PEG3-Propenyl
  Propenyl-PEG3-Propenyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141264

  Methyltetrazine-PEG4-acid
  Methyltetrazine-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138509

  NHS ester-PEG13-COOH
  NHS ester-PEG13-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138485

  Boc-PEG1-PPG2-C2-NH2
  Boc-PEG1-PPG2-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141266

  Methyltetrazine-PEG13-acid
  Methyltetrazine-PEG13-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138519

  Bis-(Mal-PEG3)-PH-N-succinimidyl acetate
  Bis-(Mal-PEG3)-PH-N-succinimidyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140423

  Boc-Aminoxy-PEG4-OH
  Boc-Aminoxy-PEG4-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140745

  Benzyloxy carbonyl-PEG3-C2-acid
  Benzyloxy carbonyl-PEG3-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007713

  Fmoc-8-amino-3,6-dioxaoctanoic acid
  Fmoc-8-amino-3,6-dioxaoctanoic acid (Fmoc-NH-PEG2-CH2COOH) is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-8-amino-3,6-dioxaoctanoic acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140265

  DBCO-PEG1-acid
  DBCO-PEG1-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG1-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140219

  Azido-PEG23-amine
  Azido-PEG23-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG23-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140641

  HO-PEG-amine (MW 10000)
  HO-PEG-amine (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W067489

  NH2-PEG1-CH2CH2-Boc
  NH2-PEG1-CH2CH2-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140953

  DSPE-PEG4-acid
  DSPE-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-156387

  SCO-PEG4-COOH
  SCO-PEG4-COOH is a PROTAC linker and belongs to the PEG class. SCO-PEG4-COOH contains SCO and COOH that can be covalently combined with amino groups, respectively. SCO is often used to react with amino acid residues of proteins or peptides, particularly lysine.

• HY-W067705

  3,6,9-Trioxaundecanedioic Acid
  369-Trioxaundecanedioic Acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133498

  HyNic-PEG2-DBCO
  HyNic-PEG2-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. HyNic-PEG2-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140511

  Acid-PEG3-PFP ester
  Acid-PEG3-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134703

  Acid-PEG12-CHO
  Acid-PEG12-CHO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138758

  S-acetyl-PEG4-Thiol
  S-acetyl-PEG4-Thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W035417

  Diethyl 7-bromoheptylphosphonate
  Diethyl 7-bromoheptylphosphonate is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140884

  Boc-NH-PEG9-propargyl
  Boc-NH-PEG9-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG9-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-136168

  Mal-amino-sulfo
  Mal-amino-sulfo is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140489

  Cbz-NH-PEG5-C2-acid
  Cbz-NH-PEG5-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138338

  Benzyl-PEG9-THP
  Benzyl-PEG9-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141036

  N-(m-PEG4)-N'-(PEG4-acid)-Cy5
  N-(m-PEG4)-N'-(PEG4-acid)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140898

  Biotin-PEG7-amine
  Biotin-PEG7-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140247

  N-(Azido-PEG3)-N-(PEG2-amine)-PEG3-acid
  N-(Azido-PEG3)-N-(PEG2-amine)-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-(PEG2-amine)-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140451

  Diketone-PEG11-Diketone
  Diketone-PEG11-Diketone is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W019799

  Amino-PEG8-Boc
  Amino-PEG8-Boc is a cleavable 8 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG8-Boc is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W250928E

  Biotin-PEG-azide (MW 5000)
  Biotin-PEG-azide (MW 5000) is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1]. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-132018

  Bromo-PEG2-NHS ester
  Bromo-PEG2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138495

  F-PEG2-SO2-COOH
  F-PEG2-SO2-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133499

  Boc-HyNic-PEG1-mal
  Boc-HyNic-PEG1-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138350

  Azido-PEG10-CH2CO2-NHS
  Azido-PEG10-CH2CO2-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-CH2CO2-NHS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-168297

  Piperidine-C2-Pip-C-COOH
  Piperidine-C2-Pip-C-COOH is a linker for PROTAC BTK Degrader-5 (HY-155072), significantly improving metabolic stability, and can be used in cancer research[1].

• HY-140286

  Sulfo DBCO-PEG4-amine
  Sulfo DBCO-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-169966

  Boc-CH2-O-(CH2)4-OTs
  Boc-CH2-O-(CH2)4-OTs is a PROTAC linker. Boc-CH2-O-(CH2)4-OTs can be used to synthesize PROTAC AR Degrader-5 (HY-160547)[1].

• HY-130871A

  HS-PEG3-CH2CH2NH2 hydrochloride
  HS-PEG3-CH2CH2NH2 hydrochloride (Thiol-PEG3-amine hydrochloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140011

  Acid-C2-PEG3-NHS ester
  Acid-C2-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133316

  HO-PEG4-benzyl ester
  HO-PEG4-benzyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140478

  Boc-NH-PEG4-C3-acid
  Boc-N-amido-PEG4-C3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140405

  1-(t-Boc-Aminooxy)-3-aminooxy-propane
  1-(t-Boc-Aminooxy)-3-aminooxy-propane is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132075

  Methylamino-PEG3-acid
  Methylamino-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W043277

  m-PEG3-Tos		98.75%
  m-PEG3-Tos is a PEG-based PROTAC linker can be used in the synthesis of Silymarin (HY-W043277)[1].

• HY-141363

  Bromo-PEG4-acid
  Bromo-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140656

  Biotin-PEG-Biotin (MW 1000)
  Biotin-PEG-Biotin (MW 1000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140382

  Ms-PEG2-MS
  Ms-PEG2-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130147

  Propargyl-PEG5-OH
  Propargyl-PEG5-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG5-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133390

  Azido-PEG1-azide
  Azido-PEG1-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132115

  Biotin-PEG3-SH
  Biotin-PEG3-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130399

  Mal-amido-PEG6-acid
  Mal-amido-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135049

  Bromo-PEG6-bromide
  Bromo-PEG6-bromide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140341

  Sulfo-NHS-Acetate
  Sulfo-NHS-Acetate is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140673

  m-PEG-acrylate (MW 30000)
  m-PEG-acrylate (MW 30000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140492

  Biotin-PEG8-acid		99.81%
  Biotin-PEG8-acid is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W042501

  m-PEG5-Tos
  m-PEG5-Tos is a derivative of silybin ethers, extracted from patent CN105037337A (compound III-c). m-PEG5-Tos is a PEG-based PROTAC linker can be used in the synthesis of Silymarin (HY-W043277)[1].

• HY-138749

  Biotin alkyne
  Biotin alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130770

  Ald-CH2-PEG3-CH2-Boc
  Ald-CH2-PEG3-CH2-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of SGK3 kinase PROTAC degrader[1].

• HY-134704

  Biotin-PEG4-SH
  Biotin-PEG4-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W067509

  m-PEG3-CH2CH2COOH
  m-PEG3-CH2CH2COOH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG3-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-141161

  TCO-PEG8-acid
  TCO-PEG8-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141263

  Methyltetrazine-acid		98.61%
  Methyltetrazine-acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140772

  Azido-PEG6-PFP ester
  Azido-PEG6-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-PFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140518

  N-(Azido-PEG3)-N-bis(PEG4-acid)
  N-(Azido-PEG3)-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-bis(PEG4-acid) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140346

  L-Azidohomoalanine
  L-Azidohomoalanine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. L-Azidohomoalanine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140339

  ANB-NOS		98.02%
  ANB-NOS is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. ANB-NOS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141218

  m-PEG10-alcohol
  m-PEG10-alcohol (Decaethylene glycol monomethyl ether) is a non-cleavable 10 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. m-PEG10-alcohol is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130653

  Azido-PEG4-C2-acid
  Azido-PEG4-C2-acid a PEG-based PROTAC linker can be used in the synthesis of vRucaparib-TP4. Azido-PEG4-C2-acid is also a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG4-C2-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138737

  Propargyl-PEG7-Br
  Propargyl-PEG7-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG7-Br is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-163790

  Desthiobiotin-PEG3-sulfo-Maleimide
  Desthiobiotin-PEG3-sulfo-Maleimide is a PEG linker can be used in the synthesis of PROTACs[1].

• HY-140278

  DBCO-PEG4-PFP ester
  DBCO-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-PFP ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-132055

  Azido-PEG8-THP
  Azido-PEG8-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-THP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-135339

  Benzyl-PEG2-CH2COOH
  Benzyl-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-170315

  Ethyne-C2-Pip-CO-Pip-Boc
  Ethyne-C2-Pip-CO-Pip-Boc (Compound 21) is a PROTAC linker. Ethyne-C2-Pip-CO-Pip-Boc can be used to synthesize QA-68 (HY-150797)[1].

• HY-133284

  m-PEG48-Br
  m-PEG48-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132044

  Benzyl-PEG8-t-butyl ester
  Benzyl-PEG8-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140373

  Tos-PEG21-Tos
  Tos-PEG21-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138466

  Azido-PEG3-C6-Cl
  Azido-PEG3-C6-Cl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-C6-Cl is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-42149

  NH2-PEG2-C2-Boc
  NH2-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. NH2-PEG2-C2-Boc is also a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-W041970

  Ethyl 6-bromohexanoate		99.93%
  Ethyl 6-bromohexanoate is a linker that can be used to synthesize PROTAC RSS0680 (HY-148062)[1].

• HY-140464

  Fmoc-N-PEG36-acid
  Fmoc-N-amido-PEG36-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-129622

  NH2-PEG5-C6-Cl
  NH2-PEG5-C6-Cl (K-7) is a linker which refers to the PEG composition. NH2-PEG5-C6-Cl can be used in the synthesis of a series of compounds that induce degradation of intracellular molecules by autophagy[1].

• HY-W591338B

  HO-PEG-CH2COOH (MW 35000)
  HO-PEG-CH2COOH (MW 35000) is a PROTAC linker belonging to the PEG class. HO-PEG-CH2COOH (MW 35000) can be used to synthesize PROTAC molecule[1].

• HY-141171

  TCO-PEG24-NHS ester
  TCO-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133389

  Mal-PEG36-NHS ester
  Mal-PEG36-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133071

  Tos-PEG6-C2-Boc
  Tos-PEG6-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126975

  Propargyl-PEG3-acid
  Propargyl-PEG3-acid is a non-cleavable (3 unit PEG) ADC linker and also a PEG-based PROTAC linker that can be used to synthesis 6-OHDA-PEG3-yne. 6-OHDA-PEG3-yne contains 6-OHDA (HY-B1081, HY-B1081A) and Propargyl-PEG3-acid[1]. Propargyl-PEG3-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133330

  Amino-PEG27-amine
  Amino-PEG27-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140095

  N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester)
  N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Propargyl-PEG4-carbonyl)-N-bis(PEG1-methyl ester) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141071

  N-(m-PEG4)-N'-(DBCO-PEG4)-Cy5
  N-(m-PEG4)-N'-(DBCO-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG4)-N'-(DBCO-PEG4)-Cy5 is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141083

  Fluorescein-PEG6-NHS ester
  Fluorescein-PEG6-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140470

  Boc-NH-PEG8-CH2CH2COOH
  Boc-NH-PEG8-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140402

  Aminooxy-PEG4-C2-Boc
  Aminooxy-PEG4-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141082

  Fluorescein-PEG5-NHS ester
  Fluorescein-PEG5-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140998

  Mal-PEG4-Glu(TFP ester)-NH-m-PEG24
  Mal-PEG4-Glu(TFP ester)-NH-m-PEG24 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141270

  Methyltetrazine-PEG8-NHS ester
  Methyltetrazine-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140809

  Azido-PEG4-(CH2)3OH
  Azido-PEG4-(CH2)3OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-(CH2)3OH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140083

  Propargyl-PEG2-N-bis(PEG2)
  Propargyl-PEG2-N-bis(PEG2) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-N-bis(PEG2) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-42620

  Tos-PEG4-CH2-Boc
  Tos-PEG4-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140656B

  Biotin-PEG-Biotin (MW 2000)
  Biotin-PEG-Biotin (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138378

  Benzyl-PEG5-NHBoc
  Benzyl-PEG5-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134722

  Hydrazide-PEG4-Desthiobiotin
  Hydrazide-PEG4-Desthiobiotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141338

  Lipoamide-PEG3-Mal		99.61%
  Lipoamide-PEG3-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141382

  Bromoacetamido-PEG4-acid
  Bromoacetamido-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromoacetamido-PEG4-acid is also a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-135943

  NH2-PEG8-C1-Boc
  NH2-PEG8-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-147206D

  Biotin-PEG-Alk (MW 5000)
  Biotin-PEG-Alk (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG-Alk (MW 5000) is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130738

  Benzyl-PEG3-CH2-Boc
  Benzyl-PEG3-CH2-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138727

  Mal-amido-PEG3-acid
  Mal-amido-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133062

  Fmoc-NH-PEG5-CH2COOH
  Fmoc-NH-PEG5-CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG5-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141287

  N-(Azido-PEG3)-N-(PEG2-NH-Boc)-PEG3-acid
  N-(Azido-PEG3)-N-(PEG2-NH-Boc)-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-(PEG2-NH-Boc)-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130172

  Benzyl-PEG2-CH2-Boc
  Benzyl-PEG2-CH2-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-W190970

  Biotin-PEG9-amine
  Biotin-PEG9-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140137

  WSPC Biotin-PEG3-DBCO
  WSPC Biotin-PEG3-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. WSPC Biotin-PEG3-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138763

  Propargyl-PEG11-acid
  Propargyl-PEG11-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG11-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138307

  NH2-PEG-Strt (MW 10000)
  NH2-PEG-Strt (MW 10000) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-135306

  Cl-C6-PEG4-C3-COOH
  Cl-C6-PEG4-C3-COOH is a PROTAC linker can be used in the synthesis of chloroalkane-containing PROTACs (HaloPROTACs)[1].

• HY-141328

  Thiol-PEG4-Boc
  Thiol-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140837

  Boc-NH-PEG5-azide
  Boc-NH-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140542

  N-Benzyl-N-bis(PEG3-acid)
  N-Benzyl-N-bis(PEG3-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141262

  Methyltetrazine-PEG24-amine
  Methyltetrazine-PEG24-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140268

  DBCO-PEG8-acid
  DBCO-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG8-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133069

  Tos-PEG2-C2-Boc
  Tos-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140840

  Boc-NH-PEG9-azide
  Boc-NH-PEG9-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG9-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140004

  Azide-PEG3-Tos
  Azide-PEG3-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG3-Tos is also a non-cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2]. Azide-PEG3-Tos is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140023

  Propargyl-PEG4-CH2COOH
  Propargyl-PEG4-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-CH2COOH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140468

  Boc-N-amido-PEG3-acid
  Boc-N-amido-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-170384

  Br-C4-NHBoc
  Br-C4-NHBoc is a PROTAC linker used in the synthesis of CCW 28-3 (HY-156774)[1].

• HY-W143484

  Fmoc-PEG3-alcohol
  Fmoc-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134733

  N-Ethyl-N-methylpropionamide-PEG1-Br
  N-Ethyl-N-methylpropionamide-PEG1-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140460

  Fmoc-N-PEG7-acid		98.52%
  Fmoc-N-amido-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132085

  Azido-PEG3-chloroacetamide
  Azido-PEG3-chloroacetamide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-chloroacetamide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-117028

  Tos-PEG7-OH
  Tos-PEG7-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140370

  Tos-PEG9-Tos
  Tos-PEG9-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133460

  Tetrazine-Ph-NHCO-PEG3-alcohol
  Tetrazine-Ph-NHCO-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-NHCO-PEG3-alcohol is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-140755

  Aeide-C1-NHS ester
  Aeide-C1-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Aeide-C1-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140583

  N-Desthiobiotin-N-bis(PEG4-NHS ester)
  N-Desthiobiotin-N-bis(PEG4-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138450

  Br-PEG4-methyl acetate
  Br-PEG4-methyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140849

  Azido-PEG3-Ala-Boc
  Azido-PEG3-Ala-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-Ala-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141308

  m-PEG5-phosphonic acid
  m-PEG5-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140667

  Azide-PEG-azide (MW 20000)
  Azide-PEG-azide (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-azide (MW 20000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134711A

  Amine-PEG6-thiol hydrochloride
  Amine-PEG6-thiol hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133320

  N3-PEG16-Hydrazide
  N3-PEG16-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N3-PEG16-Hydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133332

  Amino-PEG11-CH2COOH
  Amino-PEG11-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168698

  (4-(1H-1,2,3-Triazol-4-yl)phenyl)methanol
  (4-(1H-1,2,3-Triazol-4-yl)phenyl)methanol is a PROTAC Linker. (4-(1H-1,2,3-Triazol-4-yl)phenyl)methanol can be used to synthesize PROTAC Setidegrasib (HY-148273)[1].

• HY-138451

  Amino-PEG7-C2-SH hydrochloride
  Amino-PEG7-C2-SH hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141052

  N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5
  N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132092

  Methyl-PEG3-Ald
  Methyl-PEG3-Ald is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007803

  Boc-NH-C4-Br
  Boc-NH-C4-Br is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140644

  Amine-PEG-CH2COOH (MW 3400)
  Amine-PEG-CH2COOH (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126917

  THP-PEG5-OH
  THP-PEG5-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130416

  Mal-PEG2-PFP ester
  Mal-PEG2-PFP ester is a Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140043

  N-Me-N-bis(PEG2-propargyl)
  N-Me-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Me-N-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138455

  Bis-isopropyl-PEG1
  Bis-isopropyl-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-113931

  Aminooxy-PEG2-azide
  Aminooxy-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Aminooxy-PEG2-azide is also a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2]. Aminooxy-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-46398

  Fmoc-Val-Phe-Boc
  Fmoc-Val-Phe-Boc is a PROTAC linker and a maleimide-GGFG peptide linker. Fmoc-Val-Phe-Boc can be used in the synthesis of the Deruxtecan[1].

• HY-130504

  Propargyl-PEG1-acid
  Propargyl-PEG1-acid is a PEG-based PROTAC linker can be used in the synthesis of BTK-CRBN PROTACs Ibrutinib(HY-10997)-based PROTAC 4 and PROTAC 5. PROTAC 5 causes the degradation of BTK and induces the degradation of CSK, LYN, and LAT2 at 10 μM[1]. Propargyl-PEG1-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140679

  mPEG-amine (MW 20000)
  m-PEG-NH2 (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140461

  Fmoc-NH-PEG10-acid		99.09%
  Fmoc-NH-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138752

  S-acetyl-PEG4-amine
  S-acetyl-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141226

  m-PEG36-alcohol
  m-PEG36-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141178A

  (S)-TCO-PEG3-amine
  (S)-TCO-PEG3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140859

  S-Acetyl-PEG3-azide
  S-Acetyl-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. S-Acetyl-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141183

  TCO-PEG4-biotin
  TCO-PEG4-biotin is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W040270

  Amino-PEG10-amine
  Amino-PEG10-amine, a PEG-based PROTAC linker used to combine two mono diethylstilbestrol (DES)-based ligands, provides an alternative strategy for preparing more selective and active ER antagonists for endocrine therapy of breast cancer[1].

• HY-135821

  Fmoc-NH-PEG12-CH2CH2COOH
  Fmoc-NH-PEG12-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159772

  1-(4-(2-Aminoethyl)piperidin-1-yl)-2-azidoethan-1-one
  1-(4-(2-Aminoethyl)piperidin-1-yl)-2-azidoethan-1-one is (HY-169133) PROTACT's Linker. 1- (4- (2-aminoEyl) Piperidin-YL) -2-Azidoethan-One can be used to synthesize PROTACT molecules[1].

• HY-130414

  Mal-amido-PEG4-acid		99.76%
  Mal-amido-PEG4-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138534

  THP-CH3-ethyl propionate
  THP-CH3-ethyl propionate is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W063924

  Bpin-Cyclohexene-C-COOEt
  Bpin-Cyclohexene-C-COOEt is a PROTAC linker. Bpin-Cyclohexene-C-COOEt can be used in synthesis PROTAC SMARCA2/4-degrader-8 (HY-159460)[1].

• HY-138498

  F-PEG2-COOH
  F-PEG2-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141318

  Thiol-PEG3-phosphonic acid
  Thiol-PEG3-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141001

  Bis-Mal-Lysine-PEG4-acid
  Bis-Mal-Lysine-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132009

  Benzyl-PEG7-bromide
  Benzyl-PEG7-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138531

  THP-PEG1-THP
  THP-PEG1-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133456

  Biotin-PEG2-aldehyde
  Biotin-PEG2-aldehyde is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168348

  (R)-4-(1-(Pyrrolidin-3-ylmethyl)piperidin-4-yl)aniline
  (R)-4-(1-(Pyrrolidin-3-ylmethyl)piperidin-4-yl)aniline is a linker for NX-2127 (HY-153220A)[1].

• HY-W022240

  NH2-PEG5-C2-NH-Boc
  NH2-PEG5-C2-NH-Boc (PROTAC Linker 17) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-42569

  Methyl 3-hydroxypropanoate
  Methyl 3-hydroxypropanoate is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W050087

  Octaethylene glycol
  Octaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140419

  t-Boc-Aminooxy-PEG12-Boc
  t-Boc-Aminooxy-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W250928A

  Biotin-PEG-azide (MW 600)
  Biotin-PEG-azide (MW 600) is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1]. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-138426

  Biotin-PEG4-allyl
  Biotin-PEG4-allyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140563

  N-(Azido-PEG2)-N-Boc-PEG4-Boc
  N-(Azido-PEG2)-N-Boc-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Boc-PEG4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140883

  Boc-NH-PEG8-propargyl
  Boc-NH-PEG8-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG8-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133192

  Bis-propargyl-PEG3
  Bis-propargyl-PEG3 is a PEG-based PROTAC linker used in the synthesis of PROTACs. Bis-propargyl-PEG3 is used in the synthesis of zinc-dipicolylamine (ZnDPA) complexes with antiplasmodial activity[1] [2]. Bis-propargyl-PEG3 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140185

  Amino-PEG32-acid
  Amino-PEG32-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140412

  Boc-Aminooxy-PEG3-acid
  Boc-Aminooxy-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140914

  Biotin-PEG4-Amide-C6-Azide
  Biotin-PEG4-Amide-C6-Azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-Amide-C6-Azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133439

  BCN-PEG4-NHS ester
  BCN-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. BCN-PEG4-NHS ester is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140131

  Biotin-PEG4-PC-PEG4-alkyne
  Biotin-PEG4-PC-PEG4-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-PC-PEG4-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-143815

  m-PEG18-acid
  m-PEG18-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130891

  (+)-Biotin-PEG6-hydrazide
  (+)-Biotin-PEG6-hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140752

  DOTA-PEG5-azide
  DOTA-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DOTA-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-168249

  trans-4-(2-Chloropyrimidin-5-yl)cyclohexanecarboxylic acid
  trans-4-(2-Chloropyrimidin-5-yl)cyclohexanecarboxylic acid is a PROTAC Linker that can be used to synthesize PROTAC BRM/BRG1 degrader-2 (HY-168247)[1].

• HY-145247

  Biotin-PEG7-C2-S-Vidarabine
  Biotin-PEG7-C2-S-Vidarabine is a PEG-based linker that incorporates adenosine analog Vidarabine. Vidarabine is an antiviral agent which is active against herpes simplex and varicella zoster viruses[1].

• HY-141172

  TCO-PEG2-Sulfo-NHS ester
  TCO-PEG2-Sulfo-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140656A

  Biotin-PEG-Biotin		99.32%
  Biotin-PEG-Biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134682

  Fmoc-NH-PEG5-C2-NH2		98.06%
  Fmoc-NH-PEG5-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159592

  Piperazine-Pyrimidine-Cyclohexane-COOEt
  Piperazine-Pyrimidine-Cyclohexane-COOEt is a PROTAC linker. Piperazine-Pyrimidine-Cyclohexane-COOEt can be used in the synthesis of PROTAC SMARCA2/4-degrader-1 (HY-159452)[1].

• HY-169236

  COOH-C-PEG2-NHCO-C2-COOH
  COOH-C-PEG2-NHCO-C2-COOH is a PROTAC linker that is used to synthesize PCC16 chloride (HY-169232)[1].

• HY-140763

  Azido-PEG1-CH2CO2-NHS
  Azido-PEG1-CH2CO2-NHS is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-CH2CO2-NHS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140018

  Thiol-PEG3-acid
  Thiol-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141348

  S-acetyl-PEG6-Boc
  S-acetyl-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W018291

  Mal-C6-amine TFA
  Mal-C6-amine (TFA) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133404

  Fmoc-aminooxy-PFP ester
  Fmoc-aminooxy-PFP ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140317

  m-PEG12-DBCO		98.78%
  m-PEG12-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG12-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133008

  endo-BCN-PEG3-acid		98.60%
  endo-BCN-PEG3-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-134684

  Mal-PEG3-O-Ac
  Mal-PEG3-O-Ac is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133276

  m-PEG7-Br
  m-PEG7-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096132

  Dimethylamino-PEG2-C2-NH2
  Dimethylamino-PEG2-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140676

  mPEG-amine (MW 2000)
  mPEG-amine (mPEG-NH2) (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141019

  Bis-PEG11-acid
  Bis-PEG11-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135924

  Biotin-PEG3-OH		98.00%
  Biotin-PEG3-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140881

  Boc-NH-PEG6-propargyl
  Boc-NH-PEG6-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG6-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W013253

  Boc-11-aminoundecanoic acid
  Boc-11-aminoundecanoic acid is an Alkyl/ether-based PROTAC linker can be used in the synthesis of MS432 (HY-130602)[1].

• HY-140743

  Benzyl-PEG5-amine
  Benzyl-PEG5-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132072

  THP-PEG8-THP
  THP-PEG8-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140052

  Boc-aminooxy-PEG4-propargyl
  Boc-aminooxy-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-aminooxy-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133501

  Boc-HyNic-PEG2-N3
  Boc-HyNic-PEG2-N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-HyNic-PEG2-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140538

  N-Boc-N-bis(PEG2-acid)
  N-Boc-N-bis(PEG2-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133702

  Aniline-piperazine-C3-NH-Boc
  Aniline-piperazine-C3-NH-Boc (Compound Int-3) is a PROTAC linker, and can be used for synthesis of Pomalidomide-C3-adavosertib (HY-133618) and AZD1775 (HY-10993) (a Wee1 inhibitor)[1].

• HY-141184

  TCO-PEG9-maleimide
  TCO-PEG9-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141173

  TCO-PEG8-TFP ester
  TCO-PEG8-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135921

  m-PEG5-Hydrazide
  m-PEG5-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141398

  m-PEG9-t-Butyl ester
  m-PEG9-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141041

  N-(Azide-PEG3)-N'-(PEG4-acid)-Cy5
  N-(Azide-PEG3)-N'-(PEG4-acid)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azide-PEG3)-N'-(PEG4-acid)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130651

  5-Hexynal
  5-Hexynal (compound 3) is a PROTAC linker that can be used to prepare the PROTAC product iRucaparib-TP3 (HY-130645)[1].

• HY-141192

  N-Boc-PEG8-alcohol
  N-Boc-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141320

  PEG2-bis(phosphonic acid diethyl ester)
  PEG2-bis(phosphonic acid diethyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W013522R

  Me-PEG4-Me (Standard)
  Me-PEG4-Me (Standard) is the analytical standard of Me-PEG4-Me. This product is intended for research and analytical applications. Me-PEG4-Me is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140424

  t-Boc-Aminooxy-PEG8-alcohol
  t-Boc-Aminooxy-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W019794

  Mal-PEG16-NHS ester
  Mal-PEG16-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140199

  Amino-PEG24-Boc
  Amino-PEG24-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141352

  SPDP-PEG4-acid
  SPDP-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133058

  m-PEG7-CH2-OH
  m-PEG7-CH2-OH a PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-W800630

  Hydroxy-PEG4-CH2COOH sodium salt
  Hydroxy-PEG4-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138423

  Acryloyl-PEG4-OH
  Acryloyl-PEG4-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126677

  Boc-NH-PEG3-C2-triazole-DBCO-PEG4-VC-PAB-DMEA
  Boc-NH-PEG3-C2-triazole-DBCO-PEG4-VC-PAB-DMEA is a double claevable 3-unit and 4-unit PEG linker for antibody-agent-conjugation (ADC). Boc-NH-PEG3-C2-triazole-DBCO-PEG4-VC-PAB-DMEA also is a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-138717

  m-PEG13-azide
  m-PEG13-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. m-PEG13-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130411

  Amino-PEG11-amine
  Amino-PEG11-amine, a PEG-based (12 units) PROTAC linker used to combine two mono diethylstilbestrol (DES)-based ligands, provides an alternative strategy for preparing more selective and active ER antagonists for endocrine therapy of breast cancer[1].

• HY-140174

  Boc-PEG4-sulfonic acid
  Boc-PEG4-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133272

  m-PEG5-SH
  m-PEG5-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140431

  t-Boc-Aminooxy-PEG2-azide
  t-Boc-Aminooxy-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. t-Boc-Aminooxy-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138711

  Benzyl-PEG8-Ots
  Benzyl-PEG8-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140604

  Azido-PEG3-Sulfone-PEG4-Boc
  Azido-PEG3-Sulfone-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-Sulfone-PEG4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140205

  Amino-PEG12-alcohol
  Amino-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140654

  Biotin-PEG-amine (MW 2000)
  Biotin-PEG-amine (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141194

  N-Boc-PEG16-alcohol
  N-Boc-PEG16-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130195

  SPDP-PEG4-NHS ester
  SPDP-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140474

  Boc-NH-PEG24-CH2CH2COOH
  Boc-NH-PEG24-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138312

  m-PEG1000-CH2COOH
  m-PEG1000-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130143

  Biotin-PEG3-azide
  Biotin-PEG3-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Biotin-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140490

  Cbz-N-PEG10-acid
  Cbz-N-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130141

  m-PEG6-amino-Mal
  m-PEG6-amino-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140034

  Propargyl-PEG12-amine
  Propargyl-PEG12-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG12-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-121957

  BnO-PEG1-CH2COOH
  BnO-PEG1-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-153153

  Benzyl-PEG45-alcohol		98.56%
  Benzyl-PEG45-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140092

  N-(t-Boc-Aminooxy-PEG2)-N-bis(PEG3-propargyl)
  N-(t-Boc-Aminooxy-PEG2)-N-bis(PEG3-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(t-Boc-Aminooxy-PEG2)-N-bis(PEG3-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141078

  N-(m-PEG4)-N'-(azide-PEG4)-Cy7
  N-(m-PEG4)-N'-(azide-PEG4)-Cy7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG4)-N'-(azide-PEG4)-Cy7 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141331

  m-PEG12-Thiol
  m-PEG12-Thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140835

  Boc-N-Amido-PEG3-azide
  Boc-N-Amido-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-N-Amido-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140515

  NH-bis(PEG3-acid)
  NH-bis(PEG3-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-128802

  Tos-PEG3-O-C1-CH3COO
  Tos-PEG3-O-C1-CH3COO (PROTAC Linker 6) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W042657

  Octaethylene glycol monomethyl ether
  Octaethylene glycol monomethyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141107

  m-PEG13-NHS ester
  m-PEG13-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130578

  m-PEG2-azide
  m-PEG2-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-D1295

  Pyrene azide 3
  Pyrene azide 3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Pyrene azide 3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140259

  N-(Boc-PEG4)-NH-PEG4-NH-Boc
  N-(Boc-PEG4)-NH-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140070

  endo-BCN-PEG8-NHS ester
  endo-BCN-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG8-NHS ester is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140032

  Alkyne-ethyl-PEG1-Boc
  Alkyne-ethyl-PEG1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Alkyne-ethyl-PEG1-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132119

  Boc-NHCH2CH2-PEG1-azide
  Boc-NHCH2CH2-PEG1-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NHCH2CH2-PEG1-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-42774

  Ms-PEG4-MS
  Ms-PEG4-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138755

  S-acetyl-PEG4-NHBoc
  S-acetyl-PEG4-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140391

  Boc-NH-PEG4-MS
  Boc-NH-PEG4-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140439

  Boc-Aminooxy-PEG3-thiol
  Boc-Aminooxy-PEG3-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132051

  Benzyl-PEG14-alcohol
  Benzyl-PEG14-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130184

  Azido-PEG8-NHS ester
  Azido-PEG8-NHS ester is a cleavable 8 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG8-NHS ester is also a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[2]. Azido-PEG8-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141028

  N,N'-DME-N,N'-Bis-PEG2-acid
  N,N'-DME-N,N'-Bis-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138433

  Benzyl-PEG1-propanol
  Benzyl-PEG1-propanol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133350

  m-PEG17-Hydrazide
  m-PEG17-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130537

  Azido-PEG6-alcohol
  Azido-PEG6-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-alcohol is also a non-cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2]. Azido-PEG6-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-135796

  m-PEG3-OH		99.78%
  m-PEG3-alcohol is a?PEG-based PROTAC linker?can be used in the synthesis of PROTACs.

• HY-132105

  Benzyl-PEG6-THP
  Benzyl-PEG6-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140360

  m-PEG10-Tos
  m-PEG10-Tos is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140721

  Mal-PEG-mal (MW 5000)
  Mal-PEG-mal (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140448

  Diketone-PEG4-Biotin
  Diketone-PEG4-Biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132059

  Azido-PEG13-azide
  Azido-PEG13-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG13-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126889

  Bis-PEG5-NHS ester
  Bis-PEG5-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG5-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-133454

  Mal-PEG2-oxyamine
  Mal-PEG2-oxyamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133461

  Tetrazine-Ph-NHCO-PEG6-NH-Boc
  Tetrazine-Ph-NHCO-PEG6-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-NHCO-PEG6-NH-Boc is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-141167A

  TCO-PEG4-NHS ester
  TCO-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-PEG4-NHS ester is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-140853

  Azido-PEG3-CH2CO2Me
  Azido-PEG3-CH2CO2Me is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-CH2CO2Me is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096151

  Chloroacetamido-C-PEG3-C3-NHBoc
  Chloroacetamido-C-PEG3-C3-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138462

  Methyl acetate-PEG2-propanol
  Methyl acetate-PEG2-propanol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132029

  Benzyl-PEG6-amine
  Benzyl-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040195

  m-PEG5-acid
  m-PEG5-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141294

  PEG3-bis(phosphonic acid)
  PEG3-bis(phosphonic acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140276

  DBCO-NHCO-PEG13-NHS ester
  DBCO-NHCO-PEG13-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG13-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133467

  Methyltetrazine-PEG5-methyltetrazine		98.79%
  Methyltetrazine-PEG5-methyltetrazine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-PEG5-methyltetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-133396

  Azido-PEG11-azide
  Azido-PEG11-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG11-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-172125

  AMPRO-222
  AMPRO-222 is a PROTAC linker that can act as a linker of PROTAC PROTAC BRD4 Degrader-29 (HY-172124)[1].

• HY-140704

  m-PEG-triethoxysilane (MW 5000)
  m-PEG-triethoxysilane (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138479

  Benzyl-PEG2-ethanol
  Benzyl-PEG2-ethanol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140787

  Azide-PEG6-amido-C16-Boc
  Azide-PEG6-amido-C16-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG6-amido-C16-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133338

  Amino-PEG36-CH2-Boc
  Amino-PEG36-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W046471

  N-Boc-PEG4-bromide
  N-Boc-PEG4-bromide is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG4-bromide is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-140838

  Boc-NH-PEG6-azide
  Boc-NH-PEG6-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140371

  Tos-PEG12-Tos
  Tos-PEG12-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116186

  m-PEG5-MS
  m-PEG5-MS is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG5-MS is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-141097

  Acid-PEG13-NHS ester
  Acid-PEG13-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138441

  Boc-NH-PEG11-NHS ester
  Boc-NH-PEG11-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168200

  1-(5-Iodo-2-pyridinyl)-4-piperidinecarboxylic acid
  1-(5-Iodo-2-pyridinyl)-4-piperidinecarboxylic acid is a PROTAC linker can be used in the synthesis of DYR684 (HY-168194)[1].

• HY-23167

  Acid-PEG4-C2-Boc
  Acid-PEG4-C2-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs for the inhibition of mTOR[1].

• HY-140789

  Azide-PEG9-amido-C8-Boc
  Azide-PEG9-amido-C8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG9-amido-C8-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140396A

  Aminooxy-PEG3-bromide hydrochloride
  Aminooxy-PEG3-bromide hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138336

  Br-PEG3-MS
  Br-PEG3-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140561

  N-(Azido-PEG3)-N-Boc-PEG3-NHS ester
  N-(Azido-PEG3)-N-Boc-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-Boc-PEG3-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140648

  Amine-PEG-amine (MW 5000)
  Amine-PEG-amine (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140221

  Azido-PEG1-C2-methylamine
  Azido-PEG1-C2-methylamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-C2-methylamine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-76104

  (2R,4R)-4-Hydroxypyrrolidine-2-carboxylic acid hydrochloride
  cis-4-Hydroxy-D-proline hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). cis-4-Hydroxy-D-proline hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-124380

  Hydroxy-PEG2-acid
  Hydroxy-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096156

  I-PEG6-OH
  I-PEG6-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140409

  Bis-aminooxy-PEG3
  Bis-aminooxy-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140966

  Mal-PEG12-Boc
  Mal-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140217

  Azido-PEG10-amine
  Azido-PEG10-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141133

  Propargyl-PEG4-tetra-Ac-beta-D-glucose
  Propargyl-PEG4-tetra-Ac-beta-D-glucose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141055

  Cy5-PEG5-amine hydrochloride
  Cy5-PEG5-amine (hydrochloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-42145

  3-Maleimidopropionic acid		99.27%
  3-Maleimidopropionic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130298

  Amino-PEG11-OH
  Amino-PEG11-OH is non-cleavable 11 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG11-OH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-124377

  SPDP-C6-NHS ester		98.09%
  SPDP-C6-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140969

  Mal-PEG3-alcohol
  Mal-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138368

  THP-PEG1-Boc
  THP-PEG1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141132

  Propargyl-PEG4-beta-D-glucose
  Propargyl-PEG4-beta-D-glucose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126894

  Bis-PEG9-acid
  Bis- PEG9- acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Bis- PEG9- acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs).

• HY-130871

  HS-PEG3-CH2CH2NH2
  HS-PEG3-CH2CH2NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138714

  Benzyl-PEG12-Ots
  Benzyl-PEG12-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140435

  Boc-Aminooxy-PEG3-bromide
  Boc-Aminooxy-PEG3-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132028

  Benzyl-PEG6-bromide
  Benzyl-PEG6-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140683

  m-PEG-azide (MW 5000)
  m-PEG-azide (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG-azide (MW 5000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130693

  Azido-PEG5-CH2CO2-PFP
  Azido-PEG5-CH2CO2-PFP is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1]. Azido-PEG5-CH2CO2-PFP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140196

  Amino-PEG10-Boc		99.73%
  Amino-PEG10-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168227

  trans-Boronic acid pinacol-pyrazole-C-cyclobutane-O-piperidine-Boc
  trans-Boronic acid pinacol-pyrazole-C-cyclobutane-O-piperidine-Boc is a PROTAC linker. trans-Boronic acid pinacol-pyrazole-C-cyclobutane-O-piperidine-Boc can be used in the synthesis of PROTAC SMARCA2/4-degrader-35 (HY-168225)[1].

• HY-140868

  N-(Azido-PEG3)-N-bis(PEG3-Boc)
  N-(Azido-PEG3)-N-bis(PEG3-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-bis(PEG3-Boc) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130422

  Tos-PEG4-t-butyl ester
  Tos-PEG4-t-butyl ester (Tos-PEG4-Boc) is a PROTAC linker, which refers to the PEG composition. Tos-PEG4-t-butyl ester (Tos-PEG4-Boc) can be used in the synthesis of a series of PROTACs, such as BI-3663 (HY-111546). BI-3663 is a highly selective PTK2/FAK PROTAC, with cereblon ligands to hijack E3 ligases for PTK2 degradation, and inhibits PTK2 with an IC50 of 18 nM[1].

• HY-135029

  Fmoc-N-PEG3-CH2-NHS ester
  Fmoc-N-PEG3-CH2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132074

  Benzyl-PEG11-alcohol
  Benzyl-PEG11-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141307

  m-PEG4-phosphonic acid
  m-PEG4-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130525

  Iodo-PEG3-N3
  Iodo-PEG3-N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Iodo-PEG3-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130500

  Br-PEG3-CH2COOH
  Br-PEG3-CH2COOH (compound 28) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-132071

  Methylamino-PEG3-t-butyl ester
  Methylamino-PEG3-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096140

  Propargyl-PEG5-1-o-(b-cyanoethyl-n,n-diisopropyl)phosphoramidite
  Propargyl-PEG5-1-o-b-cyanoethyl-nn-diisopropylphosphoramidite is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-1-o-(b-cyanoethyl-n,n-diisopropyl)phosphoramidite is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140609

  m-PEG3-Sulfone-PEG3-Boc
  m-PEG3-Sulfone-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040222

  m-PEG11-Amine
  m-PEG11-Amino is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG11-Amine is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130900

  Propargyl-PEG3-SH
  Propargyl-PEG3-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-SH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140700

  m-PEG-NHS ester (MW 20000)
  m-PEG-NHS ester (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117104

  Hydroxy-PEG4-acid
  Hydroxy-PEG4-acid is a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Hydroxy-PEG4-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140332

  Diethyl 8-bromooctylphosphonate
  Diethyl 8-bromooctylphosphonate is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138720

  Fmoc-PEG9-NHS ester
  Fmoc-PEG9-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040214

  m-PEG4-Amine		98.80%
  m-PEG4-Amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG4-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-141035

  N-(m-PEG4)-N'-(PEG2-acid)-Cy5
  N-(m-PEG4)-N'-(PEG2-acid)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135918

  NH2-PEG6-C1-Boc
  NH2-PEG6-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140592

  Azido-PEG3-S-PEG4-t-butyl ester
  Azido-PEG3-S-PEG4-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-S-PEG4-t-butyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130597

  Propargyl-PEG2-Boc
  Propargyl-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-22391

  tert-Butyl (7-aminoheptyl)carbamate
  tert-Butyl (7-aminoheptyl)carbamate (tert-Butyl 2,8-diaminooctanoate) is a PROTAC linker. tert-Butyl (7-aminoheptyl)carbamate can be used to synthesis CPD-10 (HY-168660)[1].

• HY-140729

  Thiol-PEG-CH2COOH (MW 3400)
  Thiol-PEG-CH2COOH (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138475

  Boc-PEG2-ethoxyethane-PEG2-benzyl
  Boc-PEG2-ethoxyethane-PEG2-benzyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141259

  C-NH-Boc-C-Bis-(C1-PEG1-PFP)
  C-NH-Boc-C-Bis-(C1-PEG1-PFP) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140544

  N-(Azido-PEG2)-N-Fluorescein-PEG3-acid
  N-(Azido-PEG2)-N-Fluorescein-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Fluorescein-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138733

  Propargyl-PEG13-Boc
  Propargyl-PEG13-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG13-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140524

  N-(Azido-PEG2)-N-Boc-PEG3-acid
  N-(Azido-PEG2)-N-Boc-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Boc-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130572

  Azido-PEG5-acid
  Azido-PEG5-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs, such as the conjugate CPT-APO (CPT: Camptothecin (HY-16560)). Azido-PEG5-acid is a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1][2]. Azido-PEG5-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-168276

  Boc-Nonanol
  Boc-Nonanol is a PROTAC linker. Boc-Nonanol can be used in the synthesis of PROTAC TRIB2 degrader-1 (HY-168274) [1].

• HY-130984

  Azido-PEG1-CH2COO-Cl
  Azido-PEG1-CH2COO-Cl (compound 43a) is an alkyl/ether-based PROTAC linker. Azido-PEG1-CH2COO-Cl can be used in the synthesis of PROTAC BRD4 Degrader-1 (HY-133131)[1]. Azido-PEG1-CH2COO-Cl is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140229

  m-PEG36-amine
  m-PEG36-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096146

  Propynyl-PEG1-Ac
  Propynyl-PEG1-Ac is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propynyl-PEG1-Ac is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-156391

  TCO4-PEG2-Maleimide
  TCO4-PEG2-Maleimide is a PROTAC linker and belongs to the PEG class. TCO4-PEG2-Maleimide contains TCO and Maleimide groups, which can undergo specific "click" reactions with tetrazine groups or thiol groups, or "mercapto-acrylamide" reactions.

• HY-138459

  Propargyl-PEG9-THP
  Propargyl-PEG9-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG9-THP is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140693

  m-PEG-mal (MW 30000)
  m-PEG-mal (MW 30000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140422

  t-Boc-Aminooxy-PEG3-alcohol
  t-Boc-Aminooxy-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134707

  CHO-PEG12-Boc
  CHO-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141321

  PEG3-bis(phosphonic acid diethyl ester)
  PEG3-bis(phosphonic acid diethyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140834

  Boc-N-Amido-PEG2-C2-azide
  Boc-N-Amido-PEG2-C2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-N-Amido-PEG2-C2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140404

  Aminooxy-PEG3-methyl ester
  Aminooxy-PEG3-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140172

  Boc-NH-PEG3-sulfonic acid
  Boc-NH-PEG3-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140521

  N-(Acid-PEG2)-N-bis(PEG3-azide)
  N-(Acid-PEG2)-N-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Acid-PEG2)-N-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140188

  Amino-PEG6-amido-C16-COOH
  Amino-PEG6-amido-C16-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140564

  N-(Azido-PEG3)-N-Boc-PEG3-t-butyl ester
  N-(Azido-PEG3)-N-Boc-PEG3-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-Boc-PEG3-t-butyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-42776

  NH2-PEG3-C2-NH-Boc
  NH2-PEG3-C2-NH-Boc (PROTAC Linker 15) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1][2].

• HY-138335

  Boc-PEG8-Boc
  Boc-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138759

  Thiol-PEG3-NHBoc
  Thiol-PEG3-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141371

  Bromo-PEG2-CH2-Boc
  Bromo-PEG2-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140805

  Azido-PEG20-alcohol
  Azido-PEG20-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG20-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130211

  Azido-PEG5-alcohol
  Azido-PEG5-alcohol is a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG5-alcohol is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2]. Azido-PEG5-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-143821

  t-Boc-Aminooxy-PEG4-amine
  t-Boc-Aminooxy-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141220

  m-PEG12-OH
  m-PEG12-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG12-OH is also a non-cleavable 12 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-140814

  Azido-PEG4-hydrazide
  Azido-PEG4-hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-hydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-117519A

  Amino-Tri-(carboxyethoxymethyl)-methane hydrochloride
  Amino-Tri-(carboxyethoxymethyl)-methane hydrochloride is a cleavable PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-Tri-(carboxyethoxymethyl)-methan hydrochloride is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1][2].

• HY-141243

  Hydroxy-PEG5-C2-methyl ester		98.97%
  Hydroxy-PEG5-C2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140075

  endo-BCN-PEG6-Boc
  endo-BCN-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG6-Boc is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W002887

  N-Boc-cis-4-Hydroxy-D-proline
  N-Boc-cis-4-Hydroxy-D-proline is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). N-Boc-cis-4-Hydroxy-D-proline is also a alkyl chain-based PROTAC linker that can be used in the Synthesis of ADCs or PROTACs.

• HY-140209

  Amino-PEG7-amine
  Amino-PEG7-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W018365

  Tetraethylene glycol monomethyl ether
  Tetraethylene glycol monomethyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W890392

  (1r,4r)-tert-Butyl 4-(bromomethyl)cyclohexanecarboxylate
  (1r,4r)-tert-Butyl 4-(bromomethyl)cyclohexanecarboxylate is a PROTAC linker used in the synthesis of SMD-1087 (HY-170828)[1].

• HY-140348

  APN-​NH2
  APN- NH2 is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. APN- NH2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140638

  Acrylate-PEG-OH (MW 3400)
  Acrylate-PEG-OH (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130154

  Ald-Ph-amido-PEG2-C2-acid
  Ald-Ph-amido-PEG2-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140712

  HO-PEG-CH2COOH (MW 5000)
  HO-PEG-CH2COOH (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007587

  9-Bromononanoic acid
  9-Bromononanoic acid is a PROTAC linker. 9-Bromononanoic acid can be used in synthesis PROTAC FGFR1 degrader-1 (HY-170869)[1].

• HY-133210

  Mal-PEG5-PFP ester
  Mal-PEG5-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140053

  Boc-aminooxy-PEG5-propargyl
  Boc-aminooxy-PEG5-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-aminooxy-PEG5-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141116

  Boc-N-PEG1-C2-NHS ester
  Boc-N-PEG1-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140420

  Boc-Aminooxy-PEG4-CH2-Boc
  Boc-Aminooxy-PEG4-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W044459

  Triethylene glycol monobenzyl ether		99.76%
  Triethylene glycol monobenzyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140774

  Azido-PEG8-CH2COO-PFP
  Azido-PEG8-CH2COO-PFP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-CH2COO-PFP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140472

  Boc-NH-PEG12-CH2CH2COOH
  Boc-NH-PEG12-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140974

  Mal-amido-PEG12-acid		99.32%
  Mal-amido-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130503

  N-Boc-PEG1-bromide
  N-Boc-PEG1-bromide is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG1-bromide is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-140142

  PC Azido-PEG11-NHS carbonate ester
  PC Azido-PEG11-NHS carbonate ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. PC Azido-PEG11-NHS carbonate ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140827

  m-PEG3-azide
  m-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140267

  DBCO-PEG5-acid
  DBCO-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG5-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133478

  TCO-PEG11-TCO
  TCO-PEG11-TCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-PEG11-TCO is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-130618

  Boc-C1-PEG3-C4-OH
  Boc-C1-PEG3-C4-OH is a PROTAC linker, which refers to the Alkyl/ether composition. Boc-C1-PEG3-C4-OH can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-140107

  Azidoethyl-SS-PEG2-Boc
  Azidoethyl-SS-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azidoethyl-SS-PEG2-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141362

  Bromo-PEG2-C2-acid
  Bromo-PEG2-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132077

  THP-PEG16-THP
  THP-PEG16-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140161

  PEG3-methylamine
  PEG3-methylamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141290

  Bis-(m-PEG8-amido)-hexanoic acid
  Bis-(m-PEG8-amido)-hexanoic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140379

  1,1,1-Trifluoroethyl-PEG4-Tos
  1,1,1-Trifluoroethyl-PEG4-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140437

  t-Boc-Aminooxy-PEG7-methane
  t-Boc-Aminooxy-PEG7-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140407

  Bis-aminooxy-PEG1
  Bis-aminooxy-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130542

  Thiol-PEG8-acid
  Thiol-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140997

  Mal-PEG4-Glu(OH)-NH-m-PEG24
  Mal-PEG4-Glu(OH)-NH-m-PEG24 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140438

  Boc-Aminooxy-PEG4-NH2
  Boc-Aminooxy-PEG4-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141053

  N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5
  N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140653

  Amine-PEG-thiol (MW 5000)
  Amine-PEG-thiol (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140418

  t-Boc-Aminooxy-PEG12-NHS ester
  t-Boc-Aminooxy-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138420

  m-PEG7-Silane
  m-PEG7-Silane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141112

  m-PEG3-succinimidyl carbonate
  m-PEG3-succinimidyl carbonate is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-33366

  Boc-NH-PEG3-CH2COOH
  Boc-NH-PEG3-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1].

• HY-138766

  Propargyl-PEG11-amine
  Propargyl-PEG11-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG11-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130905

  DSPE-PEG46-NH2
  DSPE-PEG46-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130904

  DSPE-PEG47-acid
  DSPE-PEG47-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130907

  Fmoc-N-PEG24-acid
  Fmoc-N-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133465

  Tetrazine-Ph-PEG4-Ph-aldehyde
  Tetrazine-Ph-PEG4-Ph-aldehyde is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-PEG4-Ph-aldehyde is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-130856

  Mal-amido-PEG9-acid		99.54%
  Mal-amido-PEG9-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138434

  Fmoc-NH-PEG14-acid
  Fmoc-NH-PEG14-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140291

  DBCO-PEG4-NH-Boc
  DBCO-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-156392

  TCO4-PEG7-Maleimide
  TCO4-PEG7-Maleimide is a PROTAC linker and belongs to the PEG class. TCO4-PEG7-Maleimide contains TCO and Maleimide groups, which can undergo specific "click" reactions with tetrazine groups or thiol groups, or "mercapto-acrylamide" reactions.

• HY-140220

  Azido-PEG35-amine
  Azido-PEG35-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG35-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140696C

  m-PEG-OH (MW 20000)
  m-PEG-OH (MW 20000) can be used as a macroinitiator to participate in the synthesis of amphiphilic block copolymers. Nanoscale micelles can be prepared by using amphiphilic block copolymers to deliver active drugs. Paclitaxel (HY-B0015), a hydrophobic anticancer agent encapsulated in micelles, has stronger activity in killing cancer cells than free Paclitaxel. And it preferentially accumulates in tumor tissue with only limited distribution in healthy organs.

• HY-140398

  m-PEG3-Aminooxy
  m-PEG3-Aminooxy is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140153

  Methylamino-PEG2-acid
  Methylamino-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130825

  Bis-PEG13-NHS ester
  Bis-PEG13-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG13-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-141239

  Hydroxy-PEG1-C2-methyl ester
  Hydroxy-PEG1-C2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141047

  Bis-(N,N'-PEG4-NHS ester)-Cy5
  Bis-(N,N'-PEG4-NHS ester)-Cy5 is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-125534

  Tos-PEG9-Boc
  Tos-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130868

  Mal-NH-PEG24-CH2CH2COOPFP ester
  Mal-NH-PEG24-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140575

  N-Mal-N-bis(PEG4-NH-Boc)
  N-Mal-N-bis(PEG4-NH-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-112496

  Cl-C6-PEG4-O-CH2COOH
  Cl-C6-PEG4-O-CH2COOH (PROTAC Linker 4) is a PEG-based PROTAC linker can be used in the synthesis of chloroalkane-containing PROTACs (HaloPROTACs)[1].

• HY-138435

  Azido-PEG13-acid
  Azido-PEG13-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG13-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141274

  4-(6-Methyl-1,2,4,5-tetrazin-3-yl)phenol
  4-(6-Methyl-1,2,4,5-tetrazin-3-yl)phenol is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140723

  Carboxymethyl-PEG-Carboxymethyl (MW 5000)
  Carboxymethyl-PEG-Carboxymethyl (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096128

  Fmoc-NH-PEG3-amide-CH2OCH2COOH
  Fmoc-NH-PEG3-amide-CH2OCH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141054

  N,N'-bis-(propargyl-PEG4)-Cy5
  N,N'-bis-(propargyl-PEG4)-Cy5 (chloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141211

  Hydroxy-PEG6-CH2-Boc
  Hydroxy-PEG6-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141087

  BDP FL-PEG5-propargyl		99.67%
  BDP FL-PEG5-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133372

  DBCO-NHCO-PEG2-maleimide
  DBCO-NHCO-PEG2-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG2-maleimide is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-143820

  Propargyl-PEG-acid
  Propargyl-PEG-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W034597

  20-(tert-Butoxy)-20-oxoicosanoic acid
  20-(tert-Butoxy)-20-oxoicosanoic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 20-(tert-Butoxy)-20-oxoicosanoic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs

• HY-141103

  Fmoc-NMe-PEG4-NHS ester
  Fmoc-NMe-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133052

  Hydroxy-PEG3-acid
  Hydroxy-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141306

  m-PEG2-phosphonic acid
  m-PEG2-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-122702

  PEG6-(CH2CO2H)2
  PEG6-(CH2CO2H)2 is a symmetric PEG PROTAC linker, for the synthesis of Homo-PROTACs which is bivalent small-molecule dimerizers of the VHL E3 ubiquitin ligase to induce self-degradation[1].

• HY-140843

  1-Isothiocyanato-PEG3-azide
  1-Isothiocyanato-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 1-Isothiocyanato-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138710

  Benzyl-PEG7-Ots
  Benzyl-PEG7-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141205

  Hydroxy-PEG9-Boc
  Hydroxy-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133474

  TCO-PEG3-oxyamine
  TCO-PEG3-oxyamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-PEG3-oxyamine is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-130162

  Tos-PEG2-O-Propargyl		98.47%
  Tos-PEG2-O-Propargyl is a PEG-based PROTAC linker can be used in the synthesis of Thalidomide-O-PEG2-propargyl (HY-126458)[1]. Tos-PEG2-O-Propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130483

  Br-PEG3-C2-Boc
  Br-PEG3-C2-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133302

  HO-PEG6-CH2COOH
  HO-PEG6-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096074

  MS-PEG4-THP
  MS-PEG4-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133497

  HyNic-PEG2-TCO
  HyNic-PEG2-TCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. HyNic-PEG2-TCO is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-130833

  Hydroxy-PEG16-Boc
  Hydroxy-PEG16-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130364

  Fmoc-NH-PEG6-CH2COOH
  Fmoc-NH-PEG6-CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG6-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130436

  Acid-C2-PEG4-C2-NHS ester
  Acid-C2-PEG4-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096145

  Chloro-PEG2-Boc
  Chloro-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096071

  Bromo-PEG2-THP
  Bromo-PEG2-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130381

  Propargyl-PEG7-NHS ester
  Propargyl-PEG7-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG7-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG7-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140937

  Biotin-amido-PEG4-PFP ester
  Biotin-amido-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134747

  THP-PEG10-THP
  THP-PEG10-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140959

  DSPE-PEG13-TFP ester
  DSPE-PEG13-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130832

  Hydroxy-PEG13-Boc
  Hydroxy-PEG13-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141023

  Bis-PEG15-acid
  Bis-PEG15-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141081

  Fluorescein-PEG3-NH-Boc
  Fluorescein-PEG3-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134716

  Methyl acetate-PEG1-methyl acetate
  Methyl acetate-PEG1-methyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130348

  OPSS-PEG8-COOH
  OPSS-PEG8-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133407

  β-Estradiol-6-one 6-(O-carboxymethyloxime)		99.67%
  β-Estradiol-6-one 6-(O-carboxymethyloxime) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133471

  Fmoc-NH-PEG3-C2-NH2
  Fmoc-NH-PEG3-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W013458

  Bis(2-bromoethyl) ether		99.91%
  Bis2-bromoethyl ether is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W004697

  Boc-GABA-OH
  Boc-GABA-OH is a PROTAC linker which can be used to synthesis UNC6852, an EED-targeted PROTAC[1].

• HY-W002680

  (2R,4R)-1-tert-Butyl 2-methyl 4-hydroxypyrrolidine-1,2-dicarboxylate		99.96%
  N-Boc-cis-4-hydroxy-D-proline methyl ester is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). N-Boc-cis-4-hydroxy-D-proline methyl ester is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1

• HY-134736

  Bromo-PEG1-NH2 hydrobromide
  Bromo-PEG1-NH2 hydrobromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133176

  Biotin-PEG6-acid
  Biotin-PEG6-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-140289

  DBCO-PEG1-NH-Boc
  DBCO-PEG1-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG1-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140696D

  m-PEG-OH (MW 10000)		99.61%
  m-PEG-OH (MW 10000) can be used as a macroinitiator to participate in the synthesis of amphiphilic block copolymers. Amphiphilic block copolymers can be used to prepare nanoscale micelles to deliver active drugs. Paclitaxel (HY-B0015), a hydrophobic anticancer agent encapsulated in micelles, has stronger activity in killing cancer cells than free Paclitaxel. And it preferentially accumulates in tumor tissue with only limited distribution in healthy organs.

• HY-24592

  (S,E)-Cyclooct-2-enol
  (S,E)-Cyclooct-2-enol is a Click Amino Acid that can be used as a linker in the synthesis of PROTAC molecules. TCO-NHS ester contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing a Tetrazine group.

• HY-132065

  Decaethylene glycol dodecyl ether		99.91%
  Decaethylene glycol dodecyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141006

  3,4-Dibromo-Mal-PEG4-Boc
  3,4-Dibromo-Mal-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-145248

  Biotin-PEG7-C2-NH-Vidarabine-S-CH3
  Biotin-PEG7-C2-NH-Vidarabine-S-CH3 is a PEG-based linker that incorporates adenosine analog Vidarabine. Vidarabine is an antiviral agent which is active against herpes simplex and varicella zoster viruses[1].

• HY-140066

  endo-BCN-PEG12-acid
  endo-BCN-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG12-acid is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140869

  N-(Azido-PEG3)-N-bis(PEG4-Boc)
  N-(Azido-PEG3)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-bis(PEG4-Boc) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W008279

  Amino-PEG2-NH-Boc
  Amino-PEG2-NH-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W096164

  Propargyl-PEG2-bromide
  Propargyl-PEG2-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-bromide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W096107

  Benzyl-PEG8-alcohol		99.82%
  Benzyl-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140195

  Amino-PEG9-Boc
  Amino-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135916

  Biotin-C5-amino-C5-amino
  Biotin-C5-amino-C5-amino is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143832

  Cbz-PEG5-Br
  Cbz-PEG5-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134695

  5-(Biotinamido)pentylazide
  5-Biotinamidopentylazide is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 5-(Biotinamido)pentylazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-161792

  N3-C5-O-C-Boc
  N3-C5-O-C-Boc is a linker, which can be utilized for the synthesis of PROTAC SARS-CoV-2 Mpro degrader-3 (HY-161789)[1].

• HY-120773

  Fmoc-PEG3-C2-NHS ester
  Fmoc-PEG3-CH2CH2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130855

  Mal-amido-PEG7-acid
  Mal-amido-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141207

  Hydroxy-PEG20-Boc
  Hydroxy-PEG20-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133379

  Biotin-PEG12-Mal
  Biotin-PEG12-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140307

  Sulfo DBCO-PEG4-Maleimide
  Sulfo DBCO-PEG4-Maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Sulfo DBCO-PEG4-Maleimide is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-135919

  Cbz-NH-PEG5-CH2COOH
  Cbz-NH-PEG5-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132099

  Fmoc-N-amido-PEG2-azide
  Fmoc-N-amido-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Fmoc-N-amido-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140363

  m-PEG3-OMs
  m-PEG3-OMs is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133349

  m-PEG13-Hydrazide
  m-PEG13-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130591

  Propargyl-PEG4-Br
  Propargyl-PEG4-Br is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG4-Br is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG4-Br is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140376

  Boc-NH-PEG7-Tos
  Boc-NH-PEG7-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138340

  THP-PEG8-Boc
  THP-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140483

  Acid-C1-PEG5-Boc
  Acid-C1-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130204

  m-PEG8-azide
  m-PEG8-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG8-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130222

  Mal-PEG2-Val-Cit-PAB-OH		99.49%
  Mal-PEG2-Val-Cit-PAB-OH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Mal-PEG2-Val-Cit-PAB-OH also can be used as a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-130473

  Tos-PEG4-CH2COOH
  Tos-PEG4-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138504

  Bis-PEG2-Boc
  Bis-PEG2-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133189

  Bis-propargyl-PEG9
  Bis-propargyl-PEG9 is a PEG-based PROTAC linker used in the synthesis of PROTACs. Bis-propargyl-PEG9 can be used to synthesize the bivalent estrogen receptor ligands[1]. Bis-propargyl-PEG9 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140701

  m-PEG-Succinimidyl Succinate (MW 5000)
  m-PEG-Succinimidyl Succinate (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140069

  endo-BCN-PEG4-NHS ester
  endo-BCN-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG4-NHS ester is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140936

  Biotin-PEG6-Boc
  Biotin-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138520

  5-[Boc(methyl)amino]pentanal
  5-[Boc(methyl)amino]pentanal is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141124

  NHS-PEG4-(m-PEG4)3-ester
  NHS-PEG4-(m-PEG4)3-ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-42618

  Azido-PEG4-CH2-Boc
  Azido-PEG4-CH2-Boc is a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Azido-PEG4-CH2-Boc is also a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[2]. Azido-PEG4-CH2-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W010948

  Diethylene glycol bis(p-toluenesulfonate)		99.83%
  Diethylene glycol bis(p-toluenesulfonate) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134717

  Benzyl-PEG24-azide
  Benzyl-PEG24-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzyl-PEG24-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140630

  Ald-CH2-PEG4-Boc
  Ald-CH2-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133288

  m-PEG16-NH2
  m-PEG16-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W019213

  cis-4-Hydroxy-L-proline hydrochloride
  cis-4-Hydroxy-L-proline hydrochloride is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). cis-4-Hydroxy-L-proline hydrochloride is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-130475

  Azido-PEG9-acid
  Azido-PEG9-acid is a non-cleavable 9 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG9-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Azido-PEG9-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133455

  Benzaldehyde-PEG4-azide
  Benzaldehyde-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzaldehyde-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126962

  Mal-PEG5-acid
  Mal-PEG5-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140821

  Bromo-PEG4-azide		98.14%
  Bromo-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141098

  Acid-PEG25-NHS ester
  Acid-PEG25-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140713

  HO-PEG-amine (MW 1000)
  HO-PEG-amine (MW 1000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140170

  m-PEG4-sulfonic acid
  m-PEG4-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141393

  Bis-Bromoacetamido-PEG11
  Bis-Bromoacetamido-PEG11 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140850

  Azide-PEG3-C1-Ala
  Azide-PEG3-C1-Ala is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG3-C1-Ala is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132073

  Benzyl-PEG14-t-butyl-ester
  Benzyl-PEG14-t-butyl-ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133000

  Bis-PEG7-PFP ester
  Bis-PEG7-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138348

  THP-PEG2-methyl propionate
  THP-PEG2-methyl propionate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140994

  Bis-Mal-PEG6
  Bis-Mal-PEG6 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130374

  Propargyl-PEG8-OH
  Propargyl-PEG8-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG8-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141115

  Mal-NO2-Ph-PEG12-NHS
  Mal-NO2-Ph-PEG12-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135959

  DBCO-NH-PEG7-C2-NHS ester
  DBCO-NH-PEG7-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NH-PEG7-C2-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130551

  Tetrazine-Ph-PEG5-NHS ester		99.29%
  Tetrazine-Ph-PEG5-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-PEG5-NHS ester is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-138371

  MS-PEG12-THP
  MS-PEG12-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W013731

  Triethylene glycol bis(p-toluenesulfonate)
  Triethylene glycol bis(p-toluenesulfonate) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140388

  PEG4-MS
  PEG4-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-131184

  N-Boc-piperazine-C3-COOH
  N-Boc-piperazine-C3-COOH is a PROTAC linker, which refers to the alkyl/ether composition. Boc-N-piperazine-C3-COOH can be used in the synthesis of PROTAC PD-1/PD-L1 degrader-1 (HY-131183)[1].

• HY-140873

  N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester)
  N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134739

  N-Ethyl-3,3,3-trifluoro-N-methylpropanamide-PEG2-Br
  N-Ethyl-333-trifluoro-N-methylpropanamide-PEG2-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140484

  Acid-PEG3-mono-methyl ester
  Acid-PEG3-mono-methyl ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-169376

  Boc-piperazine-C13-OTs
  Boc-piperazine-C13-OTs is a PROTAC linker. Boc-piperazine-C13-OTs can be used to synthesize NC-R17 (HY-155075)[1].

• HY-141342

  S-acetyl-PEG12-alcohol
  S-acetyl-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W591338A

  HO-PEG-CH2COOH (MW 10000)
  HO-PEG-CH2COOH (MW 10000) is a PEG polymer with -COOH that can be used as a PROTAC linker to the synthesis of PROTACs[1].

• HY-141043

  N,N'-bis-(Acid-PEG3)-benzothiazole Cy5
  N,N'-bis-(Acid-PEG3)-benzothiazole Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140178

  Amino-PEG14-acid
  Amino-PEG14-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140659

  Biotin-PEG-triethoxysilane (MW 5000)
  Biotin-PEG-triethoxysilane (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138409

  Dimethylamino-PEG11
  Dimethylamino-PEG11 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138524

  Thiol-PEG2-acid
  Thiol-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135915

  Biotin-C5-NHS Ester
  Biotin-C5-NHS Ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130598

  N-(Azido-PEG3)-N-Boc-PEG4-acid
  N-(Azido-PEG3)-N-Boc-PEG4-acid is a PEG-based PROTAC linker with a terminal azide group and is used in the synthesis of PROTACs[1] N-(Azido-PEG3)-N-Boc-PEG4-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-144079

  Bromo-C4-PEG4-t-butyl ester
  Bromo-C4-PEG4-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140495

  DNP-PEG6-acid
  DNP-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159077

  H2N-C6-NH-CO-CH2-O-Ph-CH2-NH-Boc
  H2N-C6-NH-CO-CH2-O-Ph-CH2-NH-Boc is a linker. H2N-C6-NH-CO-CH2-O-Ph-CH2-NH-Boc can be utilized for synthesis of PROTAC BET Degrader-12 (HY-158764)[1].

• HY-162947

  2-(2-(2-(6-Azidohexanamido)ethoxy)ethoxy)acetic acid
  2-(2-(2-(6-Azidohexanamido)ethoxy)ethoxy)acetic acid is a PROTACT linker and can be used for synthesis of P60-L3-VHL (HY-162943). 2-(2-(2-(6-Azidohexanamido)ethoxy)ethoxy)acetic acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups[1].

• HY-140224

  Amino-PEG8-hydrazide-Boc
  Amino-PEG8-hydrazide-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130532

  Tos-PEG2-CH2-Boc
  Tos-PEG2-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141261

  Methyltetrazine-PEG4-amine
  Methyltetrazine-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-125844

  Tos-PEG1-O-CH2COOH
  Tos-PEG1-O-CH2COOH (PROTAC Linker 28) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133410A

  Mal-C2-cyclohexylcarboxyl-hydrazide hydrochloride		98.23%
  Mal-C2-cyclohexylcarboxyl-hydrazide hydrochloride is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140797

  Azido-PEG2-alcohol		99.49%
  Azido-PEG2-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141024

  Bis-PEG17-acid
  Bis-PEG17-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133229

  Propargyl-PEG4-alcohol
  Propargyl-PEG4-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-alcohol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138374

  Azido-PEG12-THP
  Azido-PEG12-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG12-THP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141383

  Bromoacetamido-PEG8-acid
  Bromoacetamido-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040304

  Alkynyl Palmitic Acid
  Alkynyl Palmitic Acid (Alk-C16) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Alkynyl Palmitic Acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141370

  Bromo-PEG1-CH2-Boc
  Bromo-PEG1-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141214

  Bromo-PEG5-alcohol
  Bromo-PEG5-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140846

  N-Fmoc-N'-(azido-PEG4)-L-Lysine
  N-Fmoc-N'-(azido-PEG4)-L-Lysine is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Fmoc-N'-(azido-PEG4)-L-Lysine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141230

  Hexaethylene glycol		99.87%
  Hexaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W010642

  Pent-4-yn-1-ol
  Pent-4-yn-1-ol is a PROTAC linker. Pent-4-yn-1-ol can be used to synthesize PROTAC molecules (e.g. RD-23 (HY-168867))[1].

• HY-130637

  Boc-NH-PEG1-Ph-O-CH2COOH
  Boc-NH-PEG1-Ph-O-CH2COOH is a PROTAC Linker which is used for the EED-targeted PROTAC[1].

• HY-W019798

  NH2-PEG8-acid
  NH2-PEG8-acid is a non-cleavable 8 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. NH2-PEG8-acid also is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-141392

  Bromoacetamido-PEG9-ethylcarbamoyl-C12-Boc
  Bromoacetamido-PEG9-ethylcarbamoyl-C12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W011277

  Fmoc-azetidine-3-carboxylic acid		98.72%
  Fmoc-azetidine-3-carboxylic acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-azetidine-3-carboxylic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-132103

  NHS ester-PEG3-S-methyl ethanethioate
  NHS ester-PEG3-S-methyl ethanethioate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130496

  Ald-Ph-PEG6-acid
  Ald-Ph-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140245

  N-(Amino-PEG3)-N-bis(PEG3-acid)
  N-(Amino-PEG3)-N-bis(PEG3-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141349

  S-Acetyl-PEG3-C2-acid
  S-Acetyl-PEG3-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133385

  SPDP-PEG7-acid
  SPDP-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140177

  Amino-PEG12-acid
  Amino-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141283

  Methyltetrazine-PEG5-triethoxysilane
  Methyltetrazine-PEG5-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140241

  NH2-PEG4-Glu(OH)-NH-m-PEG24
  NH2-PEG4-Glu(OH)-NH-m-PEG24 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117079

  N-Boc-N-bis(PEG2-OH)
  N-Boc-N-bis(PEG2-OH) is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-N-bis(PEG2-OH) is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-138419

  Biotin-PEG6-Silane
  Biotin-PEG6-Silane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140735

  DSPE-PEG-Amine, MW 5000
  DSPE-PEG-Amine, MW 5000 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096118

  m-PEG2-O-Ph-3-NH2
  m-PEG2-O-Ph-3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133270

  m-PEG10-SH
  m-PEG10-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140314

  DOTA-PEG5-C6-DBCO
  DOTA-PEG5-C6-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DOTA-PEG5-C6-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138375

  Mal-PEG5-C2-NH2 hydrochloride
  Mal-PEG5-C2-NH2 hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138427

  m-PEG18-Mal
  m-PEG18-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-113697

  Mal-amido-PEG2-C2-amido-Ph-C2-CO-AZD		99.77%
  Mal-amido-PEG2-C2-amido-Ph-C2-CO-AZD (Mal-PEG2-AZD) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140640

  Acrylate-PEG-OH (MW 10000)
  Acrylate-PEG-OH (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141403

  m-PEG37-hydrazide
  m-PEG37-hydrazide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133347

  m-PEG11-Hydrazide
  m-PEG11-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096113

  m-PEG2-O-Ph-NH2
  m-PEG2-O-Ph-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140262

  Amino-Tri-(m-PEG4-ethoxymethyl)-methane
  Amino-Tri-(m-PEG4-ethoxymethyl)-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140920

  UV Cleavable Biotin-PEG2-Azide
  UV Cleavable Biotin-PEG2-Azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. UV Cleavable Biotin-PEG2-Azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140627

  Ald-Ph-PEG6-Boc
  Ald-Ph-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130137

  m-PEG8-C10-phosphonic acid
  m-PEG8-C10-phosphonic acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140462

  Fmoc-N-PEG20-acid
  Fmoc-N-amido-PEG20-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132090

  Acid-PEG3-SSPy
  Acid-PEG3-SSPy is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-118781

  Propargyl-PEG3-azide
  Propargyl-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140643

  Amine-PEG-CH2COOH (MW 2000)
  Amine-PEG-CH2COOH (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140919

  N-(Azido-PEG4)-biocytin
  N-(Azido-PEG4)-biocytin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG4)-biocytin is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140608

  m-PEG3-Sulfone-PEG4-propargyl
  m-PEG3-Sulfone-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG3-Sulfone-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140154

  Methylamino-PEG1-Boc
  Methylamino-PEG1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141397

  m-PEG8-T-Butyl ester
  m-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141034

  Cy5-PEG6-acid
  Cy5-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140986

  m-PEG48-Mal
  m-PEG48-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140718

  HO-PEG-mal (MW 5000)
  HO-PEG-mal (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141248

  2-(Azido-PEG2-amido)-1,3-propandiol
  2-(Azido-PEG2-amido)-13-propandiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 2-(Azido-PEG2-amido)-1,3-propandiol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140304

  DBCO-PEG10-DBCO
  DBCO-PEG10-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG10-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140783

  Azido-PEG15-t-butyl ester
  Azido-PEG15-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG15-t-butyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-168313

  2-(2-Azaspiro[3.3]heptan-6-yl)ethanamine
  2-(2-Azaspiro[3.3]heptan-6-yl)ethanamine is the PROTAC linker of KT-413 (HY-153368) and can be used in the synthesis of PROTACs[1].

• HY-122459

  Fmoc-PEG5-NHS ester
  Fmoc-PEG5-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140902A

  Biotin-PEG3-C3-NH2
  Biotin-PEG3-C3-NH2 is a PEG-based PROTAC linker, with NH2 functional group, that can be used in the synthesis of PROTACs[1].

• HY-138329

  THP-PEG24-THP
  THP-PEG24-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130829

  m-PEG15-NHS ester
  m-PEG15-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141084

  Fluorescein-PEG6-bis-NHS ester
  Fluorescein-PEG6-bis-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W392857

  (S)-NH2-Pyridine-piperazine(Me)-Boc
  (S)-NH2-Pyridine-piperazine(Me)-Boc is a PROTAC Linker that can be used to synthesize PROTAC BTK Degrader-10 (HY-160966)[1].

• HY-140084

  N-(Propargyl-PEG4)-N-bis(PEG4-acid)
  N-(Propargyl-PEG4)-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Propargyl-PEG4)-N-bis(PEG4-acid) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140366

  Tos-PEG5-CH2COOtBu
  Tos-PEG5-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134748

  HO-PEG7-CH2COOH
  HO-PEG7-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140781

  Azido-PEG10-Boc
  Azido-PEG10-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140684

  m-PEG-azide (MW 10000)
  m-PEG-azide (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG-azide (MW 10000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140080

  Gly-PEG3-endo-BCN
  Gly-PEG3-endo-BCN is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Gly-PEG3-endo-BCN is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140021

  Propargyl-PEG13-acid
  Propargyl-PEG13-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG13-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-45018

  Tos-PEG3-CH2COOtBu
  Tos-PEG3-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-172117

  Boc-methylglycine-C2-bromine
  Boc-methylglycine-C2-bromine is a PROTAC linker.Boc-methylglycine-C2-bromine can be used to synthesize PROTAC molecules like PROTAC SMARCA2 degrader-24 (HY-169275)[1].

• HY-145253

  Tri(TLR4-IN-C34-C2-amide-PEG1)-amide-C3-COOH
  Tri(TLR4-IN-C34-C2-amide-PEG1)-amide-C3-COOH is a linker that incorporates TLR4 inhibitor TLR4-IN-C34. TLR4-IN-C34 inhibits TLR4 in enterocytes and macrophages, and reduces systemic inflammation in mouse models of endotoxemia and necrotizing enterocolitis[1].

• HY-133384

  SPDP-PEG5-acid
  SPDP-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140588

  Benzyl-N-bis(PEG3-Boc)
  Benzyl-N-bis(PEG3-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W056267

  3-Boc-3-azaspiro[5.5]undecane-9-carbaldehyde
  3-Boc-3-azaspiro[5.5]undecane-9-carbaldehyde is a PROTAC linker, and can be used for synthesis of PROTAC SOS1 degrader-8 (HY-161634)[1].

• HY-138425

  Amino-PEG12-C2-azide
  Amino-PEG12-C2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Amino-PEG12-C2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141326

  Thiol-PEG12-acid
  Thiol-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-114843

  Benzyl-PEG1-Tos
  Benzyl-PEG1-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140894

  Biotin-PEG8-alcohol		99.30%
  Biotin-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140625

  Ald-Ph-PEG24-TFP ester
  Ald-Ph-PEG24-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140992

  Mal-C4-NH-Boc
  Mal-C4-NH-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140141

  PC Methyltetrazine-PEG4-NHS carbonate ester
  PC Methyltetrazine-PEG4-NHS carbonate ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. PC Methyltetrazine-PEG4-NHS carbonate ester is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-138308

  NH2-PEG-Strt (MW 3000)
  NH2-PEG-Strt (MW 3000) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130902

  m-PEG37-Propargyl
  m-PEG37-Propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG37-Propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141086

  BDP FL-PEG5-azide
  BDP FL-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140279

  DBCO-PEG4-alcohol
  DBCO-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-alcohol is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140216

  Azido-PEG8-amine
  Azido-PEG8-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-161393

  RB-CO-PEG5-C2-CO-VH032
  RB-CO-PEG5-C2-CO-VH032 is a TRIM24 degrader that can inactivat the mTOR signaling pathway[1].

• HY-42637

  N3-PEG3-CH2COOH
  N3-PEG3-CH2COOH (PROTAC Linker 14) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. N3-PEG3-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140891

  Biotin-PEG8-NHS ester		99.89%
  Biotin-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138523

  NH2-PEG3500-NH2
  NH2-PEG3500-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138314

  m-PEG16-COOH
  m-PEG16-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-101157

  Propargyl-PEG5-acid
  Propargyl-PEG5-acid is a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Propargyl-PEG5-acid can used to synthesize ADC inhibitors of Galectin-3. Propargyl-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W190816

  Acid-PEG7-t-butyl ester
  Acid-PEG7-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140682

  m-PEG-azide (MW 2000)
  m-PEG-azide (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG-azide (MW 2000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096105

  Nonylbenzene-PEG5-OH
  Nonylbenzene-PEG5-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141172A

  TCO-PEG2-Sulfo-NHS ester sodium
  TCO-PEG2-Sulfo-NHS ester sodium is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133064

  m-PEG3-NHS ester
  m-PEG3-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-161933

  1-Adamantane-amide-C7-NH2
  1-Adamantane-amide-C7-NH2 is the linker, which can be used for syntheisis of PROTAC GPX4 degrader-3 (HY-161930)[1].

• HY-141325

  C6-Bis-phosphoramidic acid diethyl ester
  C6-Bis-phosphoramidic acid diethyl ester is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140010

  N-methyl-N'-(azide-PEG3)-Cy3
  N-methyl-N'-(azide-PEG3)-Cy3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-methyl-N'-(azide-PEG3)-Cy3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-128834

  N3-PEG4-C2-NH2
  N3-PEG4-C2-NH2 (PROTAC Linker 20) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. N3-PEG4-C2-NH2 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140394

  Aminooxy-PEG4-acid
  Aminooxy-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138729

  Mal-amido-PEG3-NHS ester
  Mal-amido-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159598

  3-Azaspiro[5.5]undecane-9-methanol
  3-Azaspiro[5.5]undecane-9-methanol is a PROTAC linker. 3-Azaspiro[5.5]undecane-9-methanol can be used in synthesis CW-3308 (HY-159579)[1].

• HY-133508

  Methyltetrazine-PEG4-SSPy
  Methyltetrazine-PEG4-SSPy is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-PEG4-SSPy is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-140665

  Azide-PEG-azide (MW 5000)
  Azide-PEG-azide (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-azide (MW 5000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096134

  Benzyloxy-C5-PEG1
  Benzyloxy-C5-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133311

  Hydroxy-PEG8-CH2-Boc
  Hydroxy-PEG8-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138416

  Azido-PEG10-CH2COOH
  Azido-PEG10-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134688

  Iodoacetamide-PEG5-NH2
  Iodoacetamide-PEG5-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138728

  Mal-amido-PEG5-acid
  Mal-amido-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141376

  m-PEG6-Br
  m-PEG6-Br is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-157737

  GVSKYG-PEG2-azide TFA
  GVSKYG-PEG2-azide (TFA) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.

• HY-140320

  DBCO-mPEG (MW 10kDa)
  DBCO-mPEG (MW 10kDa) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-mPEG (MW 10kDa) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140893

  Biotin-PEG6-alcohol		99.33%
  Biotin-PEG6-alcohol is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138464

  Br-Boc-C2-azido
  Br-Boc-C2-azido is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Br-Boc-C2-azido is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140357

  Tos-PEG9
  Tos-PEG9 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138404

  THP-PEG2-Mal
  THP-PEG2-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140227

  m-PEG12-amine
  m-PEG12-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG12-amine is also a non-cleavable 12 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-141240

  Hydroxy-PEG2-C2-methyl ester		98.48%
  Hydroxy-PEG2-C2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138400

  Me-PEG18-NH2
  Me-PEG18-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133280

  m-PEG9-SH		99.66%
  m-PEG9-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133374

  DBCO-NHCO-PEG12-maleimide
  DBCO-NHCO-PEG12-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG12-maleimide is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130315

  Br-PEG4-C2-Boc
  Br-PEG4-C2-Boc is a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-130662

  Hydroxy-PEG8-Boc
  Hydroxy-PEG8-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-69220

  7-Octynoic acid
  7-Octynoic acid (compound 42) is a PROTAC linker and can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1]. 7-Octynoic acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141359

  (2-Pyridyldithio)-PEG4-alcohol
  (2-Pyridyldithio)-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133293

  Thiol-PEG5-alcohol
  Thiol-PEG5-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133391

  Azido-PEG3-azide		98.26%
  Azido-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140762

  Azido-PEG24-NHS ester
  Azido-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG24-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096093

  2-(2-(6-chlorohexyloxy)ethoxy)ethanamine hydrochloride
  2-(2-(6-chlorohexyloxy)ethoxy)ethanamine (hydrochloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141209

  Hydroxy-PEG3-CH2-Boc
  Hydroxy-PEG3-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133370

  DBCO-NHCO-PEG7-acid
  DBCO-NHCO-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG7-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141065

  N-(azide-PEG3)-N'-(Amine-C3-Amide-PEG4)-Cy5
  N-(azide-PEG3)-N'-(Amine-C3-Amide-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(azide-PEG3)-N'-(Amine-C3-Amide-PEG4)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138516

  CG-PEG5-azido
  CG-PEG5-azido is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. CG-PEG5-azido is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130742

  Azido-PEG8-Boc
  Azido-PEG8-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1]. Azido-PEG8-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138740

  Azido-PEG2-propargyl
  Azido-PEG2-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-propargyl is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141059

  Cy5-PEG5-azide bromide		98.13%
  Cy5-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Cy5-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140269

  DBCO-PEG12-acid
  DBCO-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG12-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130531

  NH-bis(C2-PEG2-NH-Boc)
  NH-bis(C2-PEG2-NH-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130885

  N3-PEG6-Propanehydrazide
  N3-PEG6-Propanehydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N3-PEG6-Propanehydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140201

  Amino-PEG6-amido-C16-Boc
  Amino-PEG6-amido-C16-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138315

  Ms-PEG6-THP
  Ms-PEG6-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140335

  Alkynyl myristic acid
  Alkynyl myristic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Alkynyl myristic acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-135933

  Boc-NH-PEG8-CH2CH2NH2
  Boc-NH-PEG8-CH2CH2NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140815

  Azido-PEG8-hydrazide
  Azido-PEG8-hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-hydrazide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138351

  Propargyl-PEG4-thioacetyl
  Propargyl-PEG4-thioacetyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-thioacetyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140198

  Amino-PEG20-Boc
  Amino-PEG20-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-118808

  Propargyl-PEG2-NHBoc
  Propargyl-PEG2-NHBoc is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Propargyl-PEG2-NHBoc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-NHBoc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140189

  Amino-PEG3-CH2COOH
  Amino-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133053

  HO-PEG8-CH2CH2COOH		99.93%
  HO-PEG8-CH2CH2COOH (Hydroxy-PEG8-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120918

  NH2-PEG7
  NH2-PEG7 is a PROTAC linker, which refers to the PEG composition. NH2-PEG7 can be used in the synthesis of the PROTAC PARP1 degrader iRucaparib-AP6[1].

• HY-134696

  Azido-PEG6-CH2COOH
  Azido-PEG6-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140552

  N-(Azido-PEG3)-NH-PEG3-acid
  N-(Azido-PEG3)-NH-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-NH-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132096

  Azido-PEG4-acyl chloride
  Azido-PEG4-acyl chloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-acyl chloride is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140477

  Boc-NH-PEG6-CH2COOH
  Boc-NH-PEG6-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132024

  Bromo-PEG4-MS
  Bromo-PEG4-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140720

  Mal-PEG-mal (MW 3400)
  Mal-PEG-mal (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138446

  Amino-PEG4-C2-SH hydrochloride
  Amino-PEG4-C2-SH hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140565

  N-(Azido-PEG3)-N-Boc-PEG4-Boc
  N-(Azido-PEG3)-N-Boc-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-Boc-PEG4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141228

  THP-PEG8-Tos
  THP-PEG8-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130879

  HS-PEG5-CH2CH2N3
  HS-PEG5-CH2CH2N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. HS-PEG5-CH2CH2N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W190843

  Bromo-PEG2-acetic acid
  Bromo-PEG2-acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140726

  Boc-NH-PEG-amine (MW 3400)
  Boc-NH-PEG-amine (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W039178

  Hydroxy-PEG4-(CH2)2-Boc
  Hydroxy-PEG4-(CH2)2-Boc is a uncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Hydroxy-PEG4-(CH2)2-Boc is extracted from patent WO2004008101A2 (compound 191). Hydroxy-PEG4-(CH2)2-Boc is also a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-133269

  m-PEG11-SH
  m-PEG11-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135179

  Biotin-PEG3-alcohol
  Biotin-PEG3-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-30105

  N-Boc-piperazine
  N-Boc-piperazine is a Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTAC PD-1/PD-L1 degrader-1 (HY-131183)[1].

• HY-140519

  N-(Azido-PEG4)-N-bis(PEG4-acid)
  N-(Azido-PEG4)-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG4)-N-bis(PEG4-acid) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W003696

  tert-Butyl 5-bromoisoindoline-2-carboxylate
  tert-Butyl 5-bromoisoindoline-2-carboxylate is a PROTAC Linker. tert-Butyl 5-bromoisoindoline-2-carboxylate can be used in synthesis PTOTAC HSD17B13 degrader 1 (HY-159651)[1].

• HY-130861

  Mal-NH-PEG4-CH2CH2COOPFP ester
  Mal-NH-PEG4-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130396

  DBCO-PEG4-C2-acid		99.22%
  DBCO-PEG4-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-C2-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140866

  N-(Azido-PEG4)-N-bis(PEG4-NHS ester)
  N-(Azido-PEG4)-N-bis(PEG4-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG4)-N-bis(PEG4-NHS ester) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140801

  Azido-PEG10-alcohol
  Azido-PEG10-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138481

  Boc-PEG4-methyl propionate
  Boc-PEG4-methyl propionate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190968

  Cbz-PEG2-bromide
  Cbz-PEG2-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140410

  Bis-aminooxy-PEG4
  Bis-aminooxy-PEG4 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134730

  N-Acetylpyrrolidine-PEG2-Br
  N-Acetylpyrrolidine-PEG2-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140794

  Azido-PEG3-C-Boc
  Azido-PEG3-C-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-C-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-20240

  tert-Butyl (6-aminospiro[3.3]heptan-2-yl)carbamate
  tert-Butyl (6-aminospiro[3.3]heptan-2-yl)carbamate is a linker that can be used for synthesis of PROTAC degrader CPD-39 (HY-168664)[1].

• HY-132020

  Tos-PEG2-THP
  Tos-PEG2-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117519

  Amino-Tri-(carboxyethoxymethyl)-methane
  Amino-Tri-(carboxyethoxymethyl)-methane is a cleavable PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Amino-Tri-(carboxyethoxymethyl)-methan is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-125888

  Boc-NH-C6-amido-C4-acid
  Boc-NH-C6-amido-C4-acid (PROTAC Linker 32) is an alkyl ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133480

  Bromoacetyl-PEG3-DBCO		98.62%
  Bromoacetyl-PEG3-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromoacetyl-PEG3-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138511

  NHS ester-PEG7-COOH
  NHS ester-PEG7-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133369

  DBCO-NHCO-PEG3-acid
  DBCO-NHCO-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG3-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140800

  Azido-PEG9-alcohol
  Azido-PEG9-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140427

  Boc-Aminooxy-PEG3-C2-NH2
  Boc-Aminooxy-PEG3-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-40141

  1-Boc-azetidine-3-carboxylic acid
  1-Boc-azetidine-3-carboxylic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-Boc-azetidine-3-carboxylic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2]

• HY-141037

  N-(m-PEG9)-N'-(PEG5-acid)-Cy5
  N-(m-PEG9)-N'-(PEG5-acid)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140019

  Azido-PEG3-amide-C3-triethoxysilane
  Azido-PEG3-amide-C3-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-amide-C3-triethoxysilane is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134679

  N-Boc-C1-PEG5-C3-NH2
  N-Boc-C1-PEG5-C3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140901

  Biotin-PEG23-amine
  Biotin-PEG23-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141280

  Methyltetrazine-PEG24-NH-Boc
  Methyltetrazine-PEG24-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133373

  DBCO-NHCO-PEG6-maleimide
  DBCO-NHCO-PEG6-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG6-maleimide is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133405

  Boc-NH-O-C1-NHS ester
  Boc-NH-O-C1-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-I0781

  Boc-Hyp-OH
  Boc-Hyp-OH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-Hyp-OH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2]

• HY-140778

  Azide-PEG5-Boc
  Azide-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG5-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140062

  Propargyl-PEG17-methane
  Propargyl-PEG17-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG17-methane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W008429

  m-PEG2-Amine
  m-PEG2-Amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG2-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-W096150

  Dimethylamino-PEG3
  Dimethylamino-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133326

  m-PEG16-Mal
  m-PEG16-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190728

  Bis-PEG4-TFP ester		98.01%
  Bis-PEG4-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141327

  Thiol-PEG3-Boc
  Thiol-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140551

  NH-bis(PEG3-azide)
  NH-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. NH-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140260

  NH-bis(PEG3-C2-NH-Boc)
  NH-bis(PEG3-C2-NH-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141401

  m-PEG13-Boc
  m-PEG13-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W340290

  2-(3-(Aminomethyl)phenyl)acetic acid
  2-(3-(Aminomethyl)phenyl)acetic acid is a PROTAC linker that can be used to synthesize DU-14 (PTP1B/TC-PTP PROTAC) (HY-164864)[1].

• HY-140186

  Amino-PEG36-acid
  Amino-PEG36-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134693

  Azido-C1-PEG4-C3-NH2
  Azido-C1-PEG4-C3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-C1-PEG4-C3-NH2 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W190963

  Boc-NH-PEG7-acetic acid
  Boc-NH-PEG7-acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133381

  DSPE-PEG36-DBCO
  DSPE-PEG36-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DSPE-PEG36-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140622

  Ald-Ph-amido-PEG24-acid
  Ald-Ph-amido-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130188

  Benzyl-PEG2-azide		99.12%
  Benzyl-PEG2-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Benzyl-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132107

  MS-PEG3-THP
  MS-PEG3-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140562

  N-(Azido-PEG2)-N-Boc-PEG3-Boc
  N-(Azido-PEG2)-N-Boc-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Boc-PEG3-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140214

  Azido-PEG5-amine
  Azido-PEG5-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140896

  Biotin-PEG5-amine		99.25%
  Biotin-PEG5-amine is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140444

  Cbz-aminooxy-PEG8-Boc
  Cbz-aminooxy-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133175

  Biotin-PEG7-azide		99.87%
  Biotin-PEG7-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTAC. Biotin-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133315

  HO-PEG1-benzyl ester
  HO-PEG1-benzyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140607

  m-PEG3-Sulfone-PEG3
  m-PEG3-Sulfone-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140929

  Bis-Biotin-PEG23
  Bis-Biotin-PEG23 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138358

  Azido-PEG23-C2-azide
  Azido-PEG23-C2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG23-C2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134719

  ICG-Sulfo-OSu sodium
  ICG-Sulfo-OSu sodium is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120537

  m-PEG5-CH2COOH		99.00%
  m-PEG5-CH2COOH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG5-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W613607

  HO-PEG3-(CH2)6-Cl
  HO-PEG3-(CH2)6-Cl is a PROTAC linker that can be used to synthesize HaloPROTAC-E (HY-145752)[1].

• HY-46346

  Fmoc-Gly-NH-CH2-O-CH2-Cbz
  Fmoc-Gly-NH-CH2-O-CH2-Cbz is a PROTAC linker and a maleimide-GGFG peptide linker. Fmoc-Gly-NH-CH2-O-CH2-Cbz can be used in the synthesis of the Deruxtecan[1].

• HY-140554

  N-Boc-N-bis(C2-PEG1-azide)
  N-Boc-N-bis(C2-PEG1-azide) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Boc-N-bis(C2-PEG1-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138765

  Propargyl-PEG7-amine
  Propargyl-PEG7-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG7-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W008474

  Boc-NH-PEG2-C2-NH2
  Boc-NH-PEG2-C2-NH2 (PROTAC Linker 13) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141102

  Fmoc-PEG24-NHS ester
  Fmoc-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116025

  APN-C3-PEG4-alkyne
  APN-C3-PEG4-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. APN-C3-PEG4-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133476

  TCO-PEG3-alcohol		99.32%
  TCO-PEG3-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-PEG3-alcohol is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-140076

  endo-BCN-PEG2-alcohol
  endo-BCN-PEG2-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG2-alcohol is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141118

  Boc-NH-PEG3-NHS ester
  Boc-NH-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130580

  Thiol-PEG6-alcohol
  Thiol-PEG6-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-D1718

  BDP FL-PEG5-acid
  BDP FL-PEG5-acid is a BDP FL acid linker containing a hydrophilic PEG spacer arm. BDP FL-PEG5-acid can be used in the synthesis of PROTACs. BDP FL is a green-fluorescent dye, and the hydrophilic PEG spacer arm increases water solubility and membrane permability.

• HY-140475

  Boc-NH-PEG36-CH2CH2COOH
  Boc-NH-PEG36-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138530

  Thiol-PEG4-amide-NH2
  Thiol-PEG4-amide-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140825

  Bromoacetamido-PEG3-azide
  Bromoacetamido-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromoacetamido-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130909

  Propargyl-PEG25-acid
  Propargyl-PEG25-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG25-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141105

  m-PEG11-NHS ester
  m-PEG11-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159572

  NH2-C5-Azacyclohexane-N-Boc
  NH2-C5-Azacyclohexane-N-Boc is a PROTAC linker. NH2-C5-Azacyclohexane-N-Boc can be used in synthesis XD2-149 (HY-159570)[1].

• HY-122413

  m-PEG7-NHS ester
  m-PEG7-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140308

  DBCO-PEG4-triethoxysilane
  DBCO-PEG4-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-triethoxysilane is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140218

  Azido-PEG11-amine
  Azido-PEG11-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG11-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141201

  m-PEG3-aminooxy-Boc
  m-PEG3-aminooxy-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W014099

  Boc-NH-C4-acid
  Boc-NH-C4-acid is a PROTAC linker, which belongs to a Alkyl/ether linker. Boc-NH-C4-acid can be used in the synthesis of the compound PROTAC1, and specifically degrades EED, EZH2, and SUZ12 in the PRC2 Complex.

• HY-132011

  Benzyl-PEG13-THP
  Benzyl-PEG13-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130887

  (+)-Biotin-SLC
  (+)-Biotin-SLC is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140433

  Boc-Aminooxy-PEG4-azide
  Boc-Aminooxy-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-Aminooxy-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138460

  Propargyl-PEG10-alcohol
  Propargyl-PEG10-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG10-alcohol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140911

  Biotin-PEG6-azide		99.89%
  Biotin-PEG6-azide is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140476

  Boc-NH-PEG1-CH2COOH
  Boc-NH-PEG1-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141219

  m-PEG11-OH		99.25%
  m-PEG11-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W872575A

  (R)-TCO4-PEG3-Maleimide
  TCO4-PEG3-Maleimide is a PROTAC linker and belongs to the PEG class. TCO4-PEG3-Maleimide contains TCO and Maleimide groups, which can undergo specific "click" reactions with tetrazine groups or thiol groups, or "mercapto-acrylamide" reactions.

• HY-141094

  Pyrene-PEG5-biotin
  Pyrene-PEG5-biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159018

  Alkyne-C6-OMs
  Alkyne-C6-OMs is a PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-108372

  Boc-C5-O-C5-O-C6-Cl
  Boc-C5-O-C5-O-C6-Cl (PROTAC Linker 2) is a PROTAC linker utilized to connect the respective tyrosine kinase inhibitor (TKI) to the E3 recruiting ligand.

• HY-138326

  Bis-PEG18-Boc
  Bis-PEG18-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130889

  (+)-Biotin-PEG10-OH
  (+)-Biotin-PEG10-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140531

  N-(Biotin-PEG4)-N-bis(PEG4-acid)
  N-(Biotin-PEG4)-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140985

  m-PEG36-Mal
  m-PEG36-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159478

  CHO-Ph-spiro[3.3]heptane-COOEt
  6-(4-Methoxyphenyl)spiro[3.3]heptane-2-carboxylic acid is a PROTAC linker.

• HY-133274

  m-PEG16-SH
  m-PEG16-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140523

  Azido-PEG4-amido-tri-(carboxyethoxymethyl)-methane
  Azido-PEG4-amido-tri-(carboxyethoxymethyl)-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-amido-tri-(carboxyethoxymethyl)-methane is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-143838

  Acid-PEG14-t-butyl ester
  Acid-PEG14-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138764

  Propargyl-PEG12-acid
  Propargyl-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG12-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-107608

  Leukotriene B4
  Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases. Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2][3].

• HY-W019796

  Cbz-NH-PEG4-C2-acid
  Cbz-NH-PEG4-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140163

  N,N'-DME-N-PEG2-Boc
  N,N'-DME-N-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140403

  Aminooxy-PEG4-CH2-Boc
  Aminooxy-PEG4-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133359

  Cbz-NH-PEG24-C2-acid
  Cbz-NH-PEG24-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141070

  N-(m-PEG4)-N'-(biotin-PEG3)-Cy5
  N-(m-PEG4)-N'-(biotin-PEG3)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140274

  DBCO-PEG12-NHS ester
  DBCO-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG12-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140900

  Biotin-PEG11-amine
  Biotin-PEG11-amine is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141180

  TCO-PEG6-amine
  TCO-PEG6-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141213

  Bromo-PEG2-alcohol		98.98%
  Bromo-PEG2-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130389

  Propargyl-PEG4-O-C1-Boc
  Propargyl-PEG4-O-C1-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-O-C1-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130620

  PEG3-C4-OBn		99.29%
  PEG3-C4-OBn is a polyethylene glycol (PEG)-based PROTAC linker. PEG3-C4-OBn can be used in the synthesis of the PROTAC SGK3 degrader-1 (HY-125878). PROTAC SGK3 degrader-1 is a potent SKG3 degrader based on PROTAC[1][2].

• HY-133425

  2-Phthalimidehydroxy-acetic acid
  2-Phthalimidehydroxy-acetic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190962

  t-Boc-N-amido-PEG5-acetic acid
  BocNH-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126884

  DBCO-NHCO-PEG4-NH-Boc
  DBCO-NHCO-PEG4-NH-Boc is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-NHCO-PEG4-NH-Boc is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. DBCO-NHCO-PEG4-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140288

  DBCO-C3-PEG4-amine
  DBCO-C3-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-C3-PEG4-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-170351

  NH2-PEG2-OMs
  NH2-PEG2-OMs is the linker, that could be used for synthesis of PROTAC degrader DDC-01-163 (HY-139997)[1].

• HY-140013

  Fmoc-NH-PEG1-C2-acid		99.83%
  Fmoc-NH-PEG1-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140467

  Fmoc-NH-PEG12-CH2COOH
  Fmoc-NH-PEG12-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-139661

  Boc-bipiperidine-ethynylbenzoic acid		99.19%
  Boc-bipiperidine-ethynylbenzoic acid is an Alkyl/ether-based PROTAC linker can be used in the synthesis of ARD-61[1]. Boc-bipiperidine-ethynylbenzoic acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W872575

  TCO4-PEG3-Maleimide
  TCO4-PEG3-Maleimide is a PROTAC linker and belongs to the PEG class. TCO4-PEG3-Maleimide contains TCO and Maleimide groups, which can undergo specific "click" reactions with tetrazine groups or thiol groups, or "mercapto-acrylamide" reactions.

• HY-W014831

  11-Aminoundecanoic acid
  11-Aminoundecanoic acid is an alkyl chain based PROTAC linker can be used in the synthesis of PROTACs.

• HY-133368

  DBCO-NHCO-PEG12-amine
  DBCO-NHCO-PEG12-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG12-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W560922

  Piperazine-Ac-OMe
  Piperazine-Ac-OMe is a PROTAC linker. Piperazine-Ac-OMe can be used in the synthesis of PROTAC SMARCA2/4-degrader-32 (HY-159459)[1].

• HY-135931

  m-PEG11-C2-NHS Ester
  m-PEG11-C2-NHS Ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140795

  Azido-PEG5-Boc
  Azido-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W030545

  (4-Oxo-4H-quinazolin-3-yl)-acetic acid
  (4-Oxo-4H-quinazolin-3-yl)-acetic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141164

  TCO-PEG36-acid
  TCO-PEG36-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141252

  N,N-Diethanol amine-PEG4-Boc
  N,N-Diethanol amine-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-400147

  mPEG45-diol
  mPEG45-diol is a PEG derivative containing polyether units. mPEG45-Epoxide is a PROTAC linker can be used to synthesize PROTAC molecules[1].

• HY-130821

  THP-PEG4-Pyrrolidine(N-Me)-CH2OH
  THP-PEG4-Pyrrolidine(N-Me)-CH2OH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC K-Ras Degrader-1 (HY-129523)[1].

• HY-130198

  DNP-PEG4-acid
  DNP-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138447

  Mal-NH-PEG8-Boc		98.37%
  Mal-NH-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W008879

  Mal-amido-PEG6-NHS ester		99.35%
  Mal-amido-PEG6-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133397

  Azido-PEG15-azide
  Azido-PEG15-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG15-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W019795

  m-PEGn-NHS ester
  m-PEGn-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W094307

  Methyl-PEG3-bromide
  Methyl-PEG3-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138493

  F-PEG2-S-Boc
  F-PEG2-S-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134699

  THP-PEG12-THP
  THP-PEG12-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130375

  Propargyl-PEG8-Boc
  Propargyl-PEG7-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG8-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140169

  Carboxy-PEG5-sulfonic acid
  Carboxy-PEG5-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-156386

  SCO-PEG3-COOH
  SCO-PEG3-COOH is a PROTAC linker and belongs to the PEG class. SCO-PEG3-COOH contains SCO and COOH that can be covalently combined with amino groups respectively. SCO is often used to react with amino acid residues of proteins or peptides, particularly lysine.

• HY-140887

  1,1,1-Trifluoroethyl-PEG4-propargyl
  1,1,1-Trifluoroethyl-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 1,1,1-Trifluoroethyl-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138366

  Propargyl-PEG11-alcohol
  Propargyl-PEG11-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG11-alcohol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130508

  Methyltetrazine-Ph-PEG4-azide
  Methyltetrazine-Ph-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-Ph-PEG4-azide is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-135920

  Biotin-C10-NHS Ester
  Biotin-C10-NHS Ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138412

  Bromoacetic-PEG2-NHS ester
  Bromoacetic-PEG2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140526

  N-(Azido-PEG3)-N-Boc-PEG3-acid
  N-(Azido-PEG3)-N-Boc-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-Boc-PEG3-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-20797

  Boc-Piperazine-OH
  Boc-Piperazine-OH is a PROTAC Linker in SJ46420 (HY-168635)[1].

• HY-140856

  Azido-PEG5-triethoxysilane
  Azido-PEG5-triethoxysilane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-triethoxysilane is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133482

  Iodo-PEG12-NHS ester
  Iodo-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130164

  Bromo-PEG3-C2-phosphonic acid
  Bromo-PEG3-C2-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133063

  Fmoc-NH-PEG8-CH2COOH		99.41%
  Fmoc-NH-PEG8-CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG8-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140356

  Tos-PEG6-OH
  Tos-PEG6-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140935

  Biotin-PEG5-NH-Boc
  Biotin-PEG5-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135798

  Tos-PEG2-NH-Boc
  Tos-PEG2-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140046

  Propargyl-PEG5-MS
  Propargyl-PEG5-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-MS is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-168231

  trans-Boc-Piperidine-C-PIP-O-cyclobutane-OH
  trans-Boc-Piperidine-C-PIP-O-cyclobutane-OH is a PROTAC linker. trans-Boc-Piperidine-C-PIP-O-cyclobutane-OH can be used to synthesize PROTAC SMARCA2 degrader-27 (HY-168229)[1].

• HY-W019226

  Methyl 1-Cbz-azetidine-3-carboxylate
  Methyl 1-Cbz-azetidine-3-carboxylate is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Methyl 1-Cbz-azetidine-3-carboxylate is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1

• HY-140494

  Biotin-PEG36-acid
  Biotin-PEG36-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W038771

  THP-PEG1-alcohol		99.53%
  THP-PEG1-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140586

  N-Benzyl-N-bis-PEG2
  N-Benzyl-N-bis-PEG2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132100

  Thiol-PEG2-t-butyl ester
  Thiol-PEG2-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159622

  Boc-Pip-C-oxotetrahydropyrimidin-bromophenyl
  Boc-Pip-C-oxotetrahydropyrimidin-bromophenyl is a PROTAC Linker. Boc-Pip-C-oxotetrahydropyrimidin-bromophenyl can be used in synthesis PROTAC GSPT1 degrader-2 (HY-159610)[1].

• HY-W042654

  BnO-PEG6-OH
  BnO-PEG6-OH is a non-cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). BnO-PEG6-OH is also a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1][2].

• HY-140928

  Biotin-PEG4-amino-t-Bu-DADPS-C3-alykne
  Biotin-PEG4-amino-t-Bu-DADPS-C3-alykne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-amino-t-Bu-DADPS-C3-alykne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W093833

  Benzyl-PEG9-alcohol
  Benzyl-PEG9-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-169991

  1-(3,3-Difluoro-4-piperidinyl)piperazine
  1-(3,3-Difluoro-4-piperidinyl)piperazine is the PROTAC linker of CFT8634 (HY-145925B) and can be used in the synthesis of PROTACs[1].

• HY-132027

  Benzyl-PEG7-acid
  Benzyl-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117045

  Propargyl-PEG12-OH
  Propargyl-PEG12-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG12-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140574

  N-Mal-N-bis(PEG2-NH-Boc)
  N-Mal-N-bis(PEG2-NH-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168450

  trans-Cyclohexane-p-bis(C-OTs)
  trans-Cyclohexane-p-bis(C-OTs) is the linker that can be used for synthesis of PROTAC degrader dBAZ2 (HY-168448)[1].

• HY-W052006

  m-PEG7-thiol
  m-PEG7-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140872

  N-(Boc-PEG2)-N-bis(PEG3-azide)
  N-(Boc-PEG2)-N-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Boc-PEG2)-N-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140761

  Azido-PEG16-NHS ester		99.91%
  Azido-PEG16-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG16-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140559

  N-(Azido-PEG2)-N-Boc-PEG3-NHS ester
  N-(Azido-PEG2)-N-Boc-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG2)-N-Boc-PEG3-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130157

  3-(2-Pyridyldithio)propanoic Acid		99.48%
  3-(2-Pyridyldithio)propanoic Acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140085

  N-(PEG2-C2-acid)-N-bis(PEG2-propargyl)
  N-(PEG2-C2-acid)-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(PEG2-C2-acid)-N-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132061

  Azido-PEG14-t-butyl ester
  Azido-PEG14-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG14-t-butyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140628

  Ald-Ph-PEG2-Boc
  Ald-Ph-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132102

  Bis-CH2-PEG2-acid
  Bis-CH2-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140995

  Bis-Mal-PEG11
  Bis-Mal-PEG11 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-146219

  Biotin-nPEG-amine
  Biotin-nPEG-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140191

  Amino-PEG4-(CH2)3CO2H
  Amino-PEG4-(CH2)3CO2H is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138716

  m-PEG9-azide
  m-PEG9-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG9-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-129637

  NH2-PEG5-OH
  NH2-PEG5-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. NH2-PEG5-OH is also a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-141329

  m-PEG6-thiol
  m-PEG6-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140277

  DBCO-PEG2-PFP ester
  DBCO-PEG2-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. DBCO-PEG2-PFP ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups[1].

• HY-W092895

  Cyclohexane-PEG1-Br
  Cyclohexane-PEG1-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134713

  Tos-PEG14-OH
  Tos-PEG14-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W045822

  Fmoc-Lys(Pal-Glu-OtBu)-OH		99.93%
  Fmoc-Lys(Pal-Glu-OtBu)-OH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-Lys(Pal-Glu-OtBu)-OH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140164

  Azido-PEG2-C2-sulfonic acid
  Azido-PEG2-C2-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C2-sulfonic acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140333

  Diethyl 10-bromodecylphosphonate
  Diethyl 10-bromodecylphosphonate is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138491

  Iodoacetyl-PEG4-biotin
  Iodoacetyl-PEG4-biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140202

  Amino-PEG9-amido-C16-Boc
  Amino-PEG9-amido-C16-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140488

  Cbz-NH-PEG3-C2-acid		99.63%
  Cbz-NH-PEG3-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140708

  m-PEG-thiol (MW 10000)
  m-PEG-thiol (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141249

  Azido-PEG4-Amido-Tris
  Azido-PEG4-Amido-Tris is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-Amido-Tris is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096099

  Nonylbenzene-PEG8-OH
  Nonylbenzene-PEG8-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130906

  DSPE-PEG46-N3
  DSPE-PEG46-N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DSPE-PEG46-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W035376

  m-PEG6-CH2CH2CHO
  m-PEG6-CH2CH2CHO is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG6-CH2CH2CHO is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-134692

  Azido-C1-PEG3-C3-NH2
  Azido-C1-PEG3-C3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-C1-PEG3-C3-NH2 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141241

  Hydroxy-PEG3-C2-methyl ester
  Hydroxy-PEG3-C2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138718

  m-PEG14-NHS ester
  m-PEG14-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126976

  Propargyl-PEG5-amine
  Propargyl-PEG5-amine is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Propargyl-PEG5-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141004A

  3,4-Dibromo-Mal-PEG2-amine TFA
  3,4-Dibromo-Mal-PEG2-amine TFA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140816

  Azido-PEG2-hydrazide-Boc
  Azido-PEG2-hydrazide-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-hydrazide-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132082

  Benzyl-PEG13-azide
  Benzyl-PEG13-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzyl-PEG13-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140686

  m-PEG-CH2COOH (MW 2000)
  m-PEG-CH2COOH (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140696E

  m-PEG-OH (MW 1000)
  m-PEG-OH (MW 1000) can be used as a macroinitiator to participate in the synthesis of amphiphilic block copolymers. Amphiphilic block copolymers can be used to prepare nanoscale micelles to deliver active drugs. Paclitaxel (HY-B0015), a hydrophobic anticancer agent encapsulated in micelles, has stronger cancer-killing activity than free Paclitaxel. And it accumulates preferentially in tumor tissues and has only limited distribution in healthy organs.

• HY-114512

  m-PEG1-NHS ester
  m-PEG1-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-117041

  m-PEG4-CH2-aldehyde
  m-PEG4-CH2-aldehyde is a PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140361

  m-PEG11-Tos
  m-PEG11-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134690

  Propanol-PEG4-CH2OH
  Propanol-PEG4-CH2OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130148

  m-PEG8-Br
  m-PEG8-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130758

  Ald-PEG1-C2-Boc
  Ald-PEG1-C2-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141279

  Methyltetrazine-PEG4-NH-Boc
  Methyltetrazine-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133360

  Cbz-NH-PEG36-C2-acid
  Cbz-NH-PEG36-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W043840

  m-PEG5-CH2CH2COOH
  m-PEG5-CH2CH2COOH is a PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138319

  Benzyl-PEG25-amine
  Benzyl-PEG25-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-145249

  ATP-PEG8-Biotin
  ATP-PEG8-Biotin is a PEG-based linker that incorporates ATP. ATP is a central component of energy storage and metabolism in vivo. ATP provides the metabolic energy to drive metabolic pumps and serves as a coenzyme in cells. ATP is an important endogenous signaling molecule in immunity and inflammation[1][2].

• HY-138726

  Mal-PEG10-NHS ester
  Mal-PEG10-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141215

  Bromo-PEG6-alcohol
  Bromo-PEG6-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-124123

  Aminooxy-PEG4-alcohol
  Aminooxy-PEG4-alcohol is a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Aminooxy-PEG4-alcohol is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-126977

  Propargyl-PEG9-OH
  Propargyl-PEG9-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG9-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140350

  5-endo-BCN-pentanoic acid
  5-endo-BCN-pentanoic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 5-endo-BCN-pentanoic acid is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-135048

  Mal-PEG4-OH
  Mal-PEG4-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-123916

  DBCO-Biotin		98.49%
  DBCO-Biotin is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-Biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140952

  m-PEG24-DSPE
  m-PEG24-DSPE is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W008352

  Boc-NH-PEG4-CH2CH2NH2
  Boc-NH-PEG4-CH2CH2NH2 a cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-NH-PEG4-CH2CH2NH2 is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141189

  TCO-PEG8-TCO
  TCO-PEG8-TCO is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141256

  Bis-PEG13-PFP ester
  Bis-PEG13-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140158

  Methylamino-PEG3-azide
  Methylamino-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methylamino-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140230

  m-PEG48-amine
  m-PEG48-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133510

  Bis-BCN-PEG1-diamide
  Bis-BCN-PEG1-diamide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-BCN-PEG1-diamide is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141229

  Methoxy-Tr-NH-PEG7
  Methoxy-Tr-NH-PEG7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141381

  Bromoacetamido-PEG3-C2-acid
  Bromoacetamido-PEG3-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141029

  N-Hydroxypropyl-N’-(azide-PEG3)-Cy3
  N-Hydroxypropyl-N’-(azide-PEG3)-Cy3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Hydroxypropyl-N’-(azide-PEG3)-Cy3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141067

  N-methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy5
  N-methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140956

  DSPE-PEG8-Mal
  DSPE-PEG8-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140223

  Amino-PEG4-hydrazide-Boc
  Amino-PEG4-hydrazide-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141179

  TCO-PEG4-amine
  TCO-PEG4-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140002

  Amino-PEG1-C2-acid
  Amino-PEG1-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120587

  Bis-PEG6-acid
  Bis-PEG6-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141104

  m-PEG10-NHS ester
  m-PEG10-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141281

  Methyltetrazine-PEG13-Boc
  Methyltetrazine-PEG13-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117050

  PEG12-Tos
  Tos-PEG12 is a noncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). PEG12-Tos is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140631

  Ald-CH2-PEG10-Boc
  Ald-CH2-PEG10-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-136030

  APN-PEG4-PFP
  APN-PEG4-PFP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. APN-PEG4-PFP is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W096090

  Benzyl-PEG4-MS
  Benzyl-PEG4-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141386

  Bromoacetamido-PEG2-C2-NHS ester
  Bromoacetamido-PEG2-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133507

  Mal-amide-PEG2-oxyamine
  Mal-amide-PEG2-oxyamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140090

  N-(Boc-PEG1)-N-bis(PEG2-propargyl)
  N-(Boc-PEG1)-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Boc-PEG1)-N-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141293

  Oleic-DBCO
  Oleic-DBCO is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Oleic-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140908

  Biotin-PEG6-Mal		98.96%
  Biotin-PEG6-Mal is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141380

  Bromoacetamido-PEG2-C2-acid
  Bromoacetamido-PEG2-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-161496

  Boc-NHCH2-Ph-Py-NH2
  Boc-NHCH2-Ph-Py-NH2 is the linker for PROTAC molecule XYD190 (HY-161494)[1].

• HY-140600

  S-Bis-(PEG4-Boc)
  S-Bis-(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140457

  Azido-PEG24-acid		99.88%
  Azido-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG24-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126998

  Bis-PEG4-PFP ester
  Bis-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132058

  THP-PEG16-alcohol
  THP-PEG16-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096125

  Desthiobiotin-PEG4-propargyl
  Desthiobiotin-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Desthiobiotin-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-108374

  4-Azidobutylamine
  4-Azidobutylamine is a PROTAC linker, which refers to the alkyl chain composition. 4-Azidobutylamine can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1]. 4-Azidobutylamine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141384

  2-Bromo-2,2-dimethyl-acetamido-PEG3-acid
  2-Bromo-22-dimethyl-acetamido-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W398806

  (2-Aminoethyl)carbamic acid
  (2-Aminoethyl)carbamic acid is a PROTAC linker that belongs to the PEG class. (2-Aminoethyl)carbamic acid can be used to synthesize QS-57 (HY-169081)[1].

• HY-143825

  t-Boc-Aminooxy-PEG11-amine
  t-Boc-Aminooxy-PEG11-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132026

  Benzyl-PEG6-MS
  Benzyl-PEG6-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190729

  Thiol-PEG3-acetic acid
  Thiol-PEG3-acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140063

  Propargyl-PEG4-CH2-methyl ester
  Propargyl-PEG4-CH2-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-CH2-methyl ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-168723

  Piperidine-C-Pip-C2-Pip-C2-OH
  Piperidine-C-Pip-C2-Pip-C2-OH is a PROTAC Linker that can be used to synthesize the PROTAC PARP1 degrader-3 (HY-168722) for tumor research[1].

• HY-125392

  2-(Biotin-amido)-1,3-bis-(C1-PEG1-acid)
  2-(Biotin-amido)-13-bis(carboxylethoxy)propane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140569

  N-(PEG1-OH)-N-Boc-PEG2-propargyl
  N-(PEG1-OH)-N-Boc-PEG2-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(PEG1-OH)-N-Boc-PEG2-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141277

  Methyltetrazine-amido-PEG7-azide
  Methyltetrazine-amido-PEG7-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-amido-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126676

  DBCO-(PEG2-Val-Cit-PAB)2
  DBCO-(PEG2-Val-Cit-PAB)2 is a dual cleavable ADC linker for antibody-drug conjugates (ADCs). DBCO-(PEG2-Val-Cit-PAB)2 is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. DBCO-(PEG2-Val-Cit-PAB)2 is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-126887

  Mal-PEG8-NHS ester
  Mal-PEG8-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141276

  Methyltetrazine-amido-PEG5-alkyne
  Methyltetrazine-amido-PEG5-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140290

  DBCO-PEG2-NH-Boc
  DBCO-PEG2-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG2-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138363

  Azido-PEG6-MS
  Azido-PEG6-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-MS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132110

  Fmoc-N-amido-PEG3-azide
  Fmoc-N-amido-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Fmoc-N-amido-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140430

  Boc-Aminooxy-PEG1-azide
  Boc-Aminooxy-PEG1-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-Aminooxy-PEG1-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-117100

  Propargyl-PEG14-OH
  Propargyl-PEG14-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG14-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups[1].

• HY-138316

  THP-PEG10-C2-Boc
  THP-PEG10-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-77959

  6-Maleimidocapronic acid
  6-Maleimidocapronic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138692

  Azido-PEG4-azide
  Azido-PEG4-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Azido-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140734

  DSPE-PEG-Amine, MW 3400
  DSPE-PEG-Amine, MW 3400 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140902

  rel-Biotin-PEG3-C3-NH2
  rel-Biotin-PEG3-C3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-116899

  Nonaethylene glycol
  Nonaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141135

  Propargyl-PEG4-tetra-Ac-beta-D-galactose
  Propargyl-PEG4-tetra-Ac-beta-D-galactose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130491

  DNP-NH-PEG4-C2-Boc
  DNP-NH-PEG4-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138344

  MS-PEG10-THP
  MS-PEG10-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159538

  COOEt-bicyclo[2.2.2]octane-CHO
  PROTAC SMARCA2 degrader-6-Linker is a PROTAC linker that connects the E3 ligase ligand and the SMARCA2 ligand to form PROTAC SMARCA2 degrader-6 (HY-159448).

• HY-159539

  COOEt-spiro[3.3]heptane-CHO
  PROTAC SMARCA2 degrader-6-Linker is a PROTAC linker.

• HY-133290

  Thiol-PEG5-acid
  Thiol-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133324

  m-PEG37-acid
  m-PEG37-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130158

  Tos-PEG1-CH2-Boc
  Tos-PEG1-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140567

  N-(Azido-PEG4)-N-Boc-PEG4-Boc
  N-(Azido-PEG4)-N-Boc-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG4)-N-Boc-PEG4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132015

  Benzyl-PEG8-acid
  Benzyl-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140045

  Propargyl-PEG4-methylamine
  Propargyl-PEG4-methylamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-methylamine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140343

  Ac4GalNAl
  Ac4GalNAl is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Ac4GalNAl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-159678

  4-(1,3-Dioxolan-2-yl)phenethyl methanesulfonate
  4-(1,3-Dioxolan-2-yl)phenethyl methanesulfonate is a PROTAC Linker. 4-(1,3-Dioxolan-2-yl)phenethyl methanesulfonate can be used in the synthesis of PROTAC SMARCA2/4-degrader-27 (HY-162834)[1].

• HY-134680

  Ms-PEG3-CH2CH2COOH
  Ms-PEG3-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-157052

  exo-BCN-Fmoc-L-Lysine
  exo-BCN-Fmoc-L-Lysine is a Click Amino Acid that can be used as a linker in the synthesis of PROTAC molecules. exo-BCN-Fmoc-L-Lysine contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141387

  Bromoacetamido-PEG4-NHS ester
  Bromoacetamido-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140977

  Mal-amido-PEG12-NHS ester
  Mal-amido-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140341A

  Sulfo-NHS-Acetate sodium
  Sulfo-NHS-Acetate sodium is an alkyl chain-based PROTAC linker. Sulfo-NHS-Acetate sodium can be used in the synthesis of PROTACs[1].

• HY-133323

  m-PEG24-acid
  m-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138463

  Azido-PEG36-NHS ester
  Azido-PEG36-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG36-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140187

  Amino-PEG36-CONH-PEG36-acid
  Amino-PEG36-CONH-PEG36-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141137

  2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide
  2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140662

  Azide-PEG-amine (MW 3500)
  Azide-PEG-amine (MW 3500) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-amine (MW 3500) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-124386

  DBCO-NHCO-PEG4-amine
  DBCO-NHCO-PEG4-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-NHCO-PEG4-amine is a cleavable ADC linker used to conjugate MMAE (HY-15162) and antibody (e.g., DBCO-VCpAB−MMAE and DBCO-TRX−MMAE with EC50s of 280 nM and 22 nM in SKBR3 cells, respectively)[1].

• HY-W073709

  NH2-PEG1-C1-Boc
  NH2-PEG1-C1-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140502

  m-PEG17-acid		98.52%
  m-PEG17-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140573

  N-Mal-N-bis(PEG4-amine)
  N-Mal-N-bis(PEG4-amine) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140507

  m-PEG4-CH2-acid
  m-PEG4-CH2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140033

  Propargyl-PEG3-amine
  Propargyl-PEG3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141088

  BDP FL-PEG4-TCO
  BDP FL-PEG4-TCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141250

  Hydroxy-Amino-bis(PEG1-C2-Boc)
  Hydroxy-Amino-bis(PEG1-C2-Boc) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141300

  Bromo-PEG3-phosphonic acid diethyl ester
  Bromo-PEG3-phosphonic acid diethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140632

  Ald-Ph-amido-C2-PEG2-amine
  Ald-Ph-amido-C2-PEG2-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W055861

  Fmoc-NH-PEG1-CH2COOH		99.91%
  Fmoc-NH-PEG1-CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG1-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140264

  NH-bis(m-PEG8)
  NH-bis(m-PEG8) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120678

  DBCO-PEG4-acid
  DBCO-PEG4-acid is a a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117023

  m-PEG2-4-nitrophenyl carbonate
  m-PEG2-4-nitrophenyl carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W250928B

  Biotin-PEG-azide (MW 1000)
  Biotin-PEG-azide (MW 1000) is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1]. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-140798

  Azido-PEG7-alcohol
  Azido-PEG7-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126313

  BnOH-NH-bis-(C2-S)-propane-O-isoprene ester
  BnOH-NH-bis-(C2-S)-propane-O-isoprene ester (PROTAC Linker 29) is an alkyl ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W096067

  Benzyl-PEG7-alcohol
  Benzyl-PEG7-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159800

  6-(4-Azidobutanamido)hexanoic acid
  6-(4-Azidobutanamido) hexanoic acid is a PROTAC Linker that can be used to synthesize the PROTAC molecule NR-11c (HY-159798)[1].

• HY-140325

  Tetraethyl decane-1,10-diylbis(phosphonate)
  Tetraethyl decane-1,10-diylbis(phosphonate) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133057

  m-PEG4-CH2-alcohol
  m-PEG4-CH2-alcohol is PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-W190959

  m-PEG15-acetic acid
  m-PEG15-acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-156390

  (R)-TCO4-PEG7-NH2
  (R)-TCO4-PEG7-NH2 is a PROTAC linker and belongs to the PEG class. (R)-TCO4-PEG7-NH2 contains a TCO group that specifically "clicks" with the tetrazine group.

• HY-W046348

  22-(tert-Butoxy)-22-oxodocosanoic acid
  22-(tert-Butoxy)-22-oxodocosanoic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 22-(tert-Butoxy)-22-oxodocosanoic acid is also a alkyl chain-based PROTAC linker that can be used in t

• HY-138373

  Boc-PEG5-methyl ester
  Boc-PEG5-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140888

  Biotin-PEG2-NHS ester
  Biotin-PEG2-NHS ester is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141231

  Heptaethylene glycol
  Heptaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132113

  CH2COOH-PEG12-CH2COOH
  CH2COOH-PEG12-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140639

  Acrylate-PEG-OH (MW 5000)
  Acrylate-PEG-OH (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-75005

  1-Boc-4-carboxymethyl piperazine
  1-Boc-4-carboxymethyl piperazine is a PROTAC linker. 1-Boc-4-carboxymethyl piperazine can be used in the synthesis of PROTACs (e.g. PROTAC IRAK4 degrader-12 (HY-168586))[1].

• HY-140415

  Boc-Aminooxy-PEG2-CH2COOH
  Boc-Aminooxy-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140443

  Cbz-aminooxy-PEG8-acid
  Cbz-aminooxy-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140315

  m-PEG4-NH-DBCO
  m-PEG4-NH-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG4-NH-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-133328

  Amino-PEG13-amine
  Amino-PEG13-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134735

  N-Ethylacetamide-PEG1-Br
  N-Ethylacetamide-PEG1-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W008005

  Amino-PEG4-alcohol
  Amino-PEG4-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Amino-PEG4-alcohol is also a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-141333

  Lipoamido-PEG8-acid
  Lipoamido-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140386

  Ms-PEG10-t-butyl ester
  Ms-PEG10-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132054

  Benzyl-PEG17-t-butyl ester
  Benzyl-PEG17-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140694

  m-PEG-NPC (MW 20000)
  m-PEG-NPC (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134750

  HO-PEG5-CH2COOH
  HO-PEG5-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133283

  m-PEG36-Br
  m-PEG36-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140991

  Mal-NH-Boc
  Mal-NH-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143849

  N-bis(t-boc-N-amido-PEG3)-N-(PEG3-acid) (hydrochloride)
  N-bis(t-boc-N-amido-PEG3)-N-(PEG3-acid) hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130292

  m-PEG-acid
  m-PEG-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126893

  Bis-PEG8-acid
  Bis-PEG8-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG8-acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-107608R

  Leukotriene B4 (Standard)
  Leukotriene B4 (Standard) is the analytical standard of Leukotriene B4. This product is intended for research and analytical applications. Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases. Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2][3].

• HY-W190960

  Amino-PEG6-acetic acid
  Amino-PEG6-acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140688

  m-PEG-CH2COOH (MW 20000)
  m-PEG-CH2COOH (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140584

  N-Desthiobiotin-N-bis(PEG4-t-butyl ester)
  N-Desthiobiotin-N-bis(PEG4-t-butyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130478

  m-PEG4-CH2COOH
  m-PEG4-CH2COOH is a PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-125907

  Dox-Ph-PEG1-Cl
  Dox-Ph-PEG1-Cl (PROTAC Linker 34) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141344

  S-acetyl-PEG20-alcohol
  S-acetyl-PEG20-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130827

  Bis-PEG21-NHS ester
  Bis-PEG21-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG21-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-W096085

  Diethylene glycol diacetate
  Diethylene glycol diacetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140310

  TCO-PEG4-DBCO
  TCO-PEG4-DBCO is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. TCO-PEG4-DBCO is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. TCO-PEG4-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups. TCO-PEG4-DBCO also contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-130543

  1,1,1-Trifluoroethyl-PEG4-azide
  111-Trifluoroethyl-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 1,1,1-Trifluoroethyl-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133346

  m-PEG9-Hydrazide
  m-PEG9-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138367

  Benzyl-PEG3-methyl ester
  Benzyl-PEG3-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140208

  2,2-Oxybis(ethylamine)
  22-Oxybis(ethylamine) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138417

  Azido-PEG9-CH2COOH
  Azido-PEG9-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140384

  Ms-PEG5-t-butyl ester
  Ms-PEG5-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141165

  TCO-NHS ester
  TCO-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. TCO-NHS ester is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-W459522

  7-Bromohept-1-yne		99.71%
  7-Bromohept-1-yne is a PROTAC linker that can be used to synthesize AK-1690 (HY-169179)[1].

• HY-140271

  DBCO-PEG1-NHS ester
  DBCO-PEG1-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG1-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130377

  Propargyl-PEG8-bromide
  Propargyl-PEG8-bromide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG8-bromide is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG8-bromide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138339

  Benzyl-PEG8-Br
  Benzyl-PEG8-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140413

  Boc-aminoxy-PEG4-acid
  Boc-aminoxy-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-108370

  N33-TEG-COOH
  N33-TEG-COOH (N3-TEG-COOH) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. N33-TEG-COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130820

  THP-PEG4-Pyrrolidine(N-Boc)-CH2OH
  THP-PEG4-Pyrrolidine(N-Boc)-CH2OH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC K-Ras Degrader-1 (HY-129523)[1].

• HY-140233

  Boc-amido-PEG9-amine
  Boc-amido-PEG9-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141136

  Ac4GlcNAlk
  Ac4GlcNAlk is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140480

  Acid-PEG2-C2-Boc
  Acid-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135090

  m-PEG8-Tos
  Tos-PEG8-m is a derivative of silybin ethers, extracted from patent CN105037337A (compound III-d). Tos-PEG8-m is a PEG-based PROTAC linker can be used in the synthesis of Silymarin (HY-W043277)[1].

• HY-W156324

  Biotin-PEGn-NHS ester
  Biotin-PEGn-NHS ester is a biotin-labeled PROTAC linker, which belongs to the PEG class and can be used to synthesize PROTAC molecules. Biotin-PEGn-NHS ester can interact with free neutral avidin in solution and successfully target malignant glioma cells. Biotin-PEGn-NHS ester can also be grafted onto the amino group of GelMA to prepare biotin-modified functionalized hydrogel, gelatin methacryloyl (Bio-GelMA)[1][2].

• HY-140939

  Biotin-PEG11-oxyamine
  Biotin-PEG11-oxyamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140342

  Boc-C16-NHS ester
  Boc-C16-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140077

  endo-BCN-PEG3-NH-Boc
  endo-BCN-PEG3-NH-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140890

  Biotin-PEG6-NHS ester
  Biotin-PEG6-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-136140

  Aldehyde-benzyl-PEG5-alkyne
  Aldehyde-benzyl-PEG5-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Aldehyde-benzyl-PEG5-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133479

  Tetrazine-Ph-NHCO-C3-NHS ester		98.28%
  Tetrazine-Ph-NHCO-C3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-NHCO-C3-NHS ester is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-138476

  Benzyl-PEG2-ethoxyethane-PEG2
  Benzyl-PEG2-ethoxyethane-PEG2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-136158

  6-Maleimidocaproic acid sulfo-NHS
  6-Maleimidocaproic acid sulfo-NHS is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141324

  Tetraethyl butane-​1,​4-​diylbis(phosphoramid​ate)
  Tetraethyl butane-​1,​4-​diylbis(phosphoramid​ate) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140106

  Azido-PEG3-SS-PEG3-azide
  Azido-PEG3-SS-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-SS-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130911

  Propargyl-PEG12-SH
  Propargyl-PEG12-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG12-SH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140514

  NH-bis(PEG2-C2-acid)
  NH-bis(PEG2-C2-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138430

  Mal-PEG2-NHS
  Mal-PEG2-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130862

  Mal-NH-PEG6-CH2CH2COOPFP ester
  Mal-NH-PEG6-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140359

  m-PEG7-Tos
  m-PEG7-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141177

  TCO-PEG2-amine
  TCO-PEG2-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-138318

  DBCO-PEG3-amide-N-Fmoc
  DBCO-PEG3-amide-N-Fmoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG3-amide-N-Fmoc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140536

  N-(Boc-PEG3)-N-bis(PEG3-acid)
  N-(Boc-PEG3)-N-bis(PEG3-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141095

  Pyrene-PEG5-propargyl
  Pyrene-PEG5-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135911

  Biotin-PEG2-OH
  Biotin-PEG2-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140705

  m-PEG-Tos (MW 2000)
  m-PEG-Tos (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-136159

  3-Mercaptopropionic acid NHS ester
  3-Mercaptopropanyl-N-hydroxysuccinimide ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130424

  m-PEG10-azide
  m-PEG10-azide a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG10-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140572

  N-Mal-N-bis(PEG4-NHS ester)
  N-Mal-N-bis(PEG4-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133402

  BCN-​exo-​PEG3-​NH2
  BCN- exo- PEG3- NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. BCN- exo- PEG3- NH2 is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W002886

  N-Boc-cis-4-hydroxy-L-proline
  N-Boc-cis-4-hydroxy-L-proline is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). N-Boc-cis-4-hydroxy-L-proline is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2

• HY-140932

  Biotin-PEG4-hydrazide
  Biotin-PEG4-hydrazide is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096154

  Hydroxy-PEG3-ethyl acetate
  Hydroxy-PEG3-ethyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140598

  Propargyl-PEG4-S-PEG4-propargyl
  Propargyl-PEG4-S-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-S-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-114995

  Tr-PEG2-OH		99.45%
  Tr-PEG2-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tr-PEG2-OH is also a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-138397

  Boc-NH-PEG15-C2-acid
  Boc-NH-PEG15-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140925

  Diazo Biotin-PEG3-alkyne
  Diazo Biotin-PEG3-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Diazo Biotin-PEG3-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141130

  LG-PEG10-click-DBCO-Oleic
  LG-PEG10-click-DBCO-Oleic is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-42427

  NH2-PEG2-CH2-Boc
  NH2-PEG2-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140073

  endo-BCN-PEG4-PFP ester
  endo-BCN-PEG4-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG4-PFP ester is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-151716

  Halo-DBCO		98.00%
  Halo-DBCO is a click chemistry reagent containing dibenzocyclooctyne (DBCO). Halo-DBCO can be used as a ligand to react with HaloTag to form covalent HaloTag ligand couples[1].

• HY-140041

  Bis-propargyl-PEG13
  Bis-propargyl-PEG13 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-propargyl-PEG13 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W018154

  H-Glu-OtBu
  H-Glu-OtBu is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). H-Glu-OtBu is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2

• HY-126997

  Bis-PEG3-PFP ester
  Bis-PEG3-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140251

  Tri(Amino-PEG5-amide)-amine
  Tri(Amino-PEG5-amide)-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W382009

  7-Azaspiro[3.5]nonane-2-ethanol
  7-Azaspiro[3.5]nonane-2-ethanol is a PROTAC linker can be used in the synthesis of PROTAC, KTX-951 (HY-148290)[1].

• HY-133401

  endo-BCN-PEG3-NH2
  endo-BCN-PEG3-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG3-NH2 is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140009

  Azido-PEG1-C2-acid
  Azido-PEG1-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-C2-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138372

  Br-PEG4-THP
  Br-PEG4-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W784030B

  (R,E)-N-TCO-L-lysine
  (R,E)-N-TCO-L-lysine is a Click Amino Acid that can be used as a linker in the synthesis of PROTAC molecules. (R,E)-N-TCO-L-lysine contains a TCO group and can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing a Tetrazine group.

• HY-116069

  Propargyl-PEG1-NH2
  Propargyl-PEG1-NH2 is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG1-NH2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-126880

  Fmoc-NH-PEG8-NHS ester
  Fmoc-NH-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140270

  DBCO-NHCO-PEG13-acid
  DBCO-NHCO-PEG13-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG13-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138734

  Propargyl-PEG2-NHS ester
  Propargyl-PEG2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138486

  Br-PEG4-acid
  Br-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138370

  Boc-NH-PEG4-C2-Boc
  Boc-NH-PEG4-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138719

  m-PEG5-Propyne
  m-PEG5-Propyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG5-Propyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130435

  DBCO-PEG4-amine
  DBCO-PEG4-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-PEG4-amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). DBCO-PEG4-amine can be used in the synthesis of FPM-PEG4-DBCO (a homobifunctional azide-to-azide cross-linker)[1]. DBCO-PEG4-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140307A

  Sulfo DBCO-PEG4-Maleimide TEA
  Sulfo DBCO-PEG4-Maleimide TEA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Sulfo DBCO-PEG4-Maleimide (TEA) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-126961

  Mal-PEG4-acid
  Mal-PEG4-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-126891

  Bis-PEG3-acid
  Bis-PEG3-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W024365R

  3-tert-Butyl-4-methoxyphenol (Standard)
  3-tert-Butyl-4-methoxyphenol (Standard) is the analytical standard of 3-tert-Butyl-4-methoxyphenol. This product is intended for research and analytical applications. 3-tert-Butyl-4-methoxyphenol is a PROTAC linker, belongs to alkyl/ether class, with insecticidal activity. 3-tert-Butyl-4-methoxyphenol also induced increased activities of glutathione (GSH) S-transferase and epoxide hydrolase in the liver and forestomach tissues of A/HeJ mice, regulating the carcinogen metabolism system[1][2].

• HY-126957

  Biotin-PEG2-azide
  Biotin-PEG2-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Biotin-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141223

  m-PEG19-alcohol
  m-PEG19-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-138321

  Propargyl-PEG6-Br
  Propargyl-PEG6-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG6-Br is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140060

  Propargyl-PEG7-methane
  Propargyl-PEG7-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG7-methane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141291

  N'-Boc-N-(Gly-Oleoyl)-Lys
  N'-Boc-N-(Gly-Oleoyl)-Lys is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140001

  Amino-PEG3-C2-sulfonic acid
  Amino-PEG3-C2-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133343

  H2N-PEG12-Hydrazide
  H2N-PEG12-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140699

  m-PEG-NHS ester (MW 10000)
  m-PEG-NHS ester (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140702

  m-PEG-triethoxysilane (MW 1000)
  m-PEG-triethoxysilane (MW 1000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130938

  m-PEG25-acid
  m-PEG25-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132087

  Bromo-PEG7-alcohol
  Bromo-PEG7-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-42489

  N3-PEG3-CH2CH2-Boc
  N3-PEG3-CH2CH2-Boc is a cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. N3-PEG3-CH2CH2-Boc is also a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[2]. N3-PEG3-CH2CH2-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140458

  Azido-PEG36-acid
  Azido-PEG36-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG36-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138408

  BocNH-PEG4-CH2CHO
  BocNH-PEG4-CH2CHO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140603

  Azide-PEG3-Sulfone-PEG3-azide
  Azide-PEG3-Sulfone-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG3-Sulfone-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141364

  Bromo-PEG1-C2-Boc
  Bromo-PEG1-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140246

  N-(PEG3-acid)-N-bis(PEG3-amine)
  N-(PEG3-acid)-N-bis(PEG3-amine) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132030

  Benzyl-PEG6-NHBoc
  Benzyl-PEG6-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132007

  Propargyl-PEG3-PFP ester
  Propargyl-PEG3-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-PFP ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W190961

  FmocNH-PEG3-CH2CH2NH2 hydrochloride		99.57%
  FmocNH-PEG3-CH2CH2NH2 (hydrochloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140500

  m-PEG10-acid
  m-PEG10-acid is a non-cleavable 10 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. m-PEG10-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-140358

  PEG20-Tos
  PEG20-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140967

  Mal-Amido-PEG4-Boc		99.84%
  Mal-Amido-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W016087

  Monoethyl pimelate
  Monoethyl pimelate is a PROTAC linker, which refers to the alkyl/ether composition. Monoethyl pimelate can be used in the synthesis of (S,R,S)-AHPC-Me-C7 ester, a specific BCL-XL PROTAC degrader[1].

• HY-135912

  Biotin-PEG2-CH2CH2N3
  Biotin-PEG2-CH2CH2N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG2-CH2CH2N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140637

  Acrylate-PEG-NH2 (MW 10000)
  Acrylate-PEG-NH2 (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140222

  Amino-PEG2-C2-hydrazide-Boc
  Amino-PEG2-C2-hydrazide-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132060

  Azido-PEG7-t-butyl ester
  Azido-PEG7-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-t-butyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133314

  Hydroxy-PEG24-CH2-Boc
  Hydroxy-PEG24-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190945

  Biotin-PEG6-NH-Boc
  Biotin-PEG6-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140687

  m-PEG-CH2COOH (MW 5000)
  m-PEG-CH2COOH (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141175

  TCO-PNB ester		98.52%
  TCO-PNB ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132111

  Fmoc-N-amido-PEG5-azide
  Fmoc-N-amido-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Fmoc-N-amido-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141111

  m-PEG8-ethoxycarbonyl-NHS ester
  m-PEG8-ethoxycarbonyl--NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140128

  DBCO-S-S-PEG3-biotin
  DBCO-S-S-PEG3-biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-S-S-PEG3-biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130488

  Hydroxy-PEG2-C2-PFP ester
  Hydroxy-PEG2-C2-PFP ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140049

  Boc-aminooxy-PEG1-propargyl
  Boc-aminooxy-PEG1-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-aminooxy-PEG1-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-42745

  m-PEG2-Tos
  m-PEG2-Tos is a uncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG2-Tos is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-W024365

  3-tert-Butyl-4-methoxyphenol		99.69%
  3-tert-Butyl-4-methoxyphenol is a PROTAC linker, belongs to alkyl/ether class, with insecticidal activity. 3-tert-Butyl-4-methoxyphenol also induced increased activities of glutathione (GSH) S-transferase and epoxide hydrolase in the liver and forestomach tissues of A/HeJ mice, regulating the carcinogen metabolism system[1][2].

• HY-140047

  Propargyl-PEG4-sulfonic acid
  Propargyl-PEG4-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-sulfonic acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132023

  Benzyl-PEG11-MS
  Benzyl-PEG11-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140369

  Tos-PEG8-Tos
  Tos-PEG8-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-128805

  Tos-PEG3-NH-Boc
  Tos-PEG3-NH-Boc (PROTAC Linker 9) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-W017772

  Boc-NH-PEG3
  Boc-NH-PEG3 (PROTAC Linker 10) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130864

  Mal-NH-PEG12-CH2CH2COOPFP ester
  Mal-NH-PEG12-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140330

  (10-BRomodecyl)phosphonic acid		99.44%
  (10-BRomodecyl)phosphonic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140675

  mPEG-amine (MW 1000)
  m-PEG-NH2 (MW 1000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134714

  DBCO-PEG3-amine
  DBCO-PEG3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG3-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140663

  Azide-PEG-amine (MW 5000)
  Azide-PEG-amine (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-amine (MW 5000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140312

  Methyltetrazine-PEG12-DBCO
  Methyltetrazine-PEG12-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-PEG12-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups. Methyltetrazine-PEG12-DBCO also contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-130166

  Amino-PEG9-acid
  Amino-PEG9-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Amino-PEG9-acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-47373

  Folate-PEG3-C2-acid
  Folate-PEG3-C2-acid is the acid fragment of Folate-PEG3-NHS ester (HY-133493), which belongs to the PEG-type PROTAC linker and is used to synthesize PROTAC molecules.

• HY-132079

  FmocNH-PEG4-t-butyl acetate
  FmocNH-PEG4-t-butyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130193

  Mal-PEG2-NH-Boc
  Mal-PEG2-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126881

  Fmoc-PEG2-C2-NHS ester		98.89%
  Fmoc-PEG2-CH2CH2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-77475

  1-Cbz-3-Hydroxyazetidine		99.89%
  1-Cbz-3-Hydroxyazetidine is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-Cbz-3-Hydroxyazetidine is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-132091

  Propargyl-PEG9-acid
  Propargyl-PEG9-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG9-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W042713

  Pentaethylene glycol monomethyl ether		99.87%
  Pentaethylene glycol monomethyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133143

  1,2-Bis(2-iodoethoxy)ethane
  1,2-Bis(2-iodoethoxy)ethane is a PEG-based PROTAC linker. 1,2-Bis(2-iodoethoxy)ethane can be used in the synthesis of MT802 (HY-122562) and SJF620 (HY-133137). MT-802 and SJF620 are potent PROTAC BTK degraders with DC50s of 1 nM and 7.9 nM, respectively[1].

• HY-140753

  DOTA-(t-butyl)3-PEG5-azide
  DOTA-(t-butyl)3-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DOTA-(t-butyl)3-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141169

  TCO-PEG8-NHS ester
  TCO-PEG8-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141031

  N-Methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy3
  N-Methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130507

  Aminooxy-PEG5-azide
  Aminooxy-PEG5-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Aminooxy-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140724

  Bis-PEG-TFP ester (MW 5000)
  Bis-PEG-TFP ester (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143841

  Mal-amido-PEG15-acid
  Mal-amido-PEG15-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140970

  Mal-PEG8-alcohol
  Mal-PEG8-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130454

  Mal-PEG6-PFP ester
  Mal-PEG6-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130169

  Azido-PEG9-amine
  Azido-PEG9-amine is a non-cleavable 9 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Azido-PEG9-amine is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140646

  PEG-bis-amine (MW 2000)
  PEG-bis-amine (Poly(ethylene glycol)-bis-amine) (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W004868

  1-Cbz-azetidine-3-carboxylic acid
  1-Cbz-azetidine-3-carboxylic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-Cbz-azetidine-3-carboxylic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]

• HY-138444

  Benzyl-PEG18-alcohol
  Benzyl-PEG18-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130895

  Bis-Mal-PEG5
  Bis-Mal-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130872

  HS-PEG5-CH2CH2NH2
  HS-PEG5-CH2CH2NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140193

  Amino-PEG4-Boc
  Amino-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W009037

  Maleimide-C10-NHS ester
  Maleimide-C10-NHS ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140532

  N-(Amino-PEG4)-N-Biotin-PEG4-acid
  N-(Amino-PEG4)-N-Biotin-PEG4-acid is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-170528

  DBCO-PEG3-NHS
  DBCO-PEG3-NHS is a biochemical assay reagent, that can be used to chemically modify proteins and antibodies with an alkynyl (DBCO) or N-hydroxysuccinimide (NHS) ester group. DBCO-PEG3-NHS can be used as a linker in PROTAC synthesis or for drug delivery and the development of biosensors and diagnostic reagents[1].

• HY-140527

  1,3-bis(carboxyethoxy)-2,2-bis(carboxyethoxy)propane
  1,3-bis(carboxyethoxy)-2,2-bis(carboxyethoxy)propane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140596

  m-PEG3-S-PEG3-Boc
  m-PEG3-S-PEG3-Boc is a PEG- and Alkyl/ether -based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-134741

  Benzyl-PEG8-MS
  Benzyl-PEG8-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140089

  N-Boc-N-bis(PEG2-propargyl)
  N-Boc-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Boc-N-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141335

  Lipoamido-PEG24-acid
  Lipoamido-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132106

  Benzyl-PEG7-THP
  Benzyl-PEG7-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140685

  m-PEG-azide (MW 20000)
  m-PEG-azide (MW 20000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG-azide (MW 20000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130404

  m-PEG3-Boc
  m-PEG3-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130378

  Propargyl-PEG7-alcohol
  Propargyl-PEG7-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG7-alcohol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140626

  Ald-Ph-PEG4-Boc
  Ald-Ph-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-156383

  SCO-PEG3-NHS
  SCO-PEG3-NHS is a PEG linker with a terminal imine(NH) group. SCO-PEG3-NHS is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138310

  Thiol-PEG-COOH (MW 5000)
  Thiol-PEG-COOH (MW 5000) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138360

  Benzyl-PEG18-THP
  Benzyl-PEG18-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-117191

  m-PEG3-CH2-alcohol
  m-PEG3-CH2-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141074

  N-(m-PEG4)-N'-hydroxypropyl-Cy5
  N-(m-PEG4)-N'-hydroxypropyl-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140088

  NH-bis(PEG2-propargyl)
  NH-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. NH-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140926

  N-(Propargyl-PEG4)-biocytin
  N-(Propargyl-PEG4)-biocytin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Propargyl-PEG4)-biocytin is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141221

  m-PEG15-alcohol
  m-PEG15-alcohol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133066

  m-PEG6-NHS ester
  m-PEG6-NHS ester is a non-cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG6-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138376

  Benzyl-PEG12-MS
  Benzyl-PEG12-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-161656

  PIP-C-3-Azaspiro[5.5]undecane-boc
  PIP-C-3-Azaspiro[5.5]undecane-boc is the linker for PROTAC. PIP-C-3-Azaspiro[5.5]undecane-boc is utilized for synthesis of PROTAC SOS1 degrader-10 (HY-161654)[1].

• HY-133464

  Tetrazine-Ph-NHCO-PEG4-alkyne
  Tetrazine-Ph-NHCO-PEG4-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-NHCO-PEG4-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140907

  Biotin-PEG3-Mal		98.88%
  Biotin-PEG3-Mal is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140880

  Boc-NH-PEG5-propargyl
  Boc-NH-PEG5-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG5-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140623

  Ald-Ph-PEG24-NHS ester
  Ald-Ph-PEG24-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140213

  Azido-PEG2-C2-amine
  Azido-PEG2-C2-amine (N3-PEG2-CH2CH2NH2) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C2-amine is also a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2]. Azido-PEG2-C2-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W108219

  Benzyl-PEG4-Ots
  Benzyl-PEG4-Ots is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140031

  Propargyl-PEG3-OCH2-Boc
  Propargyl-PEG3-OCH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-OCH2-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W043725

  m-PEG2-CH2CH2COOH
  m-PEG2-CH2CH2COOH is PEG-based based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130513

  m-PEG7-Boc
  m-PEG7-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-132088

  N-Boc-PEG-t-butyl ester
  N-Boc-PEG-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W013249

  Boc-piperazine-benzoic acid
  Boc-piperazine-benzoic acid is a PROTAC linker and can be used in the synthesis of PROTACs, such as PROTAC androgen receptor (AR) degrader ARD-2128 (HY-13229)[1].

• HY-130160

  Fluorescein-thiourea-PEG2-azide
  Fluorescein-thiourea-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Fluorescein-thiourea-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133361

  Fmoc-NH-PEG15-CH2CH2COOH
  Fmoc-NH-PEG15-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138532

  m-PEG8-amide-C10-Thiol
  m-PEG8-amide-C10-Thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130584

  Propargyl-PEG2-MS
  Propargyl-PEG2-MS is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-MS is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133506

  Bromoacetamide-PEG3-C1-acid
  Bromoacetamide-PEG3-C1-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140368

  Bis-Tos-PEG7		99.55%
  Bis-Tos-PEG7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138345

  Benzyl-PEG11-Boc
  Benzyl-PEG11-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130426

  Maleimido-tri(ethylene glycol)-propionic acid
  Maleimido-tri(ethylene glycol)-propionic acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Maleimido-tri(ethylene glycol)-propionic acid is used for the preparation of neolymphostin-based ADC precursors for site-specific cysteine mutant trastuzumab-A114C conjugation[1]. Maleimido-tri(ethylene glycol)-propionic acid also can be used as a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-133174

  Biotin-PEG5-azide
  Biotin-PEG5-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTAC. Biotin-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096147

  S-acetyl-PEG6
  S-acetyl-PEG6 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130415

  Tos-PEG2-CH2COOH
  Tos-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130557

  endo-BCN-PEG2-acid
  endo-BCN-PEG2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. endo-BCN-PEG2-acid is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140619

  DNP-PEG4-DBCO
  DNP-PEG4-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DNP-PEG4-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-130379

  Propargyl-PEG8-acid
  Propargyl-PEG8-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG8-acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). The ADCs can be used in bacterial infections caused by Gram-negative bacteria[1]. Propargyl-PEG8-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133337

  Amino-PEG24-CH2-Boc
  Amino-PEG24-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130893

  Biotin-EDA
  Biotin-EDA is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140012

  Azido-PEG4-beta-D-glucose		99.86%
  Azido-PEG4-beta-D-glucose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-beta-D-glucose is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140590

  Azido-PEG3-S-PEG3-azide
  Azido-PEG3-S-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-S-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-114670

  Propargyl-PEG4-amine
  Propargyl-PEG4-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG4-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140899

  Biotin-PEG8-amine
  Biotin-PEG8-amine is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140950

  m-PEG8-DSPE
  m-PEG8-DSPE is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W042714

  BnO-PEG5-OH		98.55%
  BnO-PEG5-OH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-130385

  Propargyl-PEG6-NHS ester
  Propargyl-PEG6-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG6-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG6-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138320

  Fmoc-N-amido-PEG36-Boc
  Fmoc-N-amido-PEG36-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138456

  Benzyl-PEG20-alcohol
  Benzyl-PEG20-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133333

  Amino-PEG12-CH2COOH
  Amino-PEG12-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W025812

  Boc-NH-PEG2-CH2CH2COOH
  Boc-NH-PEG2-CH2CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1].

• HY-163989

  N-Ethylheptanamide
  N-Ethylheptanamide is a PROTAC linker. N-Ethylheptanamide can be used in synthesis PROTAC FGFR2 degrader 1 (HY-163985)[1].

• HY-140275

  DBCO-NHCO-PEG5-NHS ester
  DBCO-NHCO-PEG5-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG5-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-43581

  endo-BCN-O-PNB
  endo-BCN-O-PNB is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-O-PNB is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-126886

  Mal-PEG1-NHS ester
  Mal-PEG1-NHS ester is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Mal-PEG1-NHS ester is PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-141199

  Bromoacetamido-C2-PEG2-NH-Boc
  Bromoacetamido-C2-PEG2-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130150

  m-PEG5-succinimidyl carbonate
  m-PEG5-succinimidyl carbonate is a non-cleavable 5 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG5-succinimidyl carbonate is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-159619

  Boc-azetidine-2C-oxotetrahydropyrimidin-bromophenyl
  Boc-azetidine-2C-oxotetrahydropyrimidin-bromophenyl is a PROTAC Linker. Boc-azetidine-2C-oxotetrahydropyrimidin-bromophenyl can be used in the synthesis of PROTAC GSPT1 degrader-1 (HY-159609)[1].

• HY-133305

  HO-PEG24-CH2COOH
  HO-PEG24-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168244

  TsO-C2-Piperidine-O-azetidine-CO-Ph-C2-OH
  TsO-C2-Piperidine-O-azetidine-CO-Ph-C2-OH is a PROTAC linker, and can be used for PROTAC synthesis, such as PROTAC BRM/BRG1 degrader-1 (HY-168242)[1].

• HY-140656C

  Biotin-PEG-Biotin (MW 3400)
  Biotin-PEG-Biotin (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140498

  Hydroxy-PEG4-CH2COOH
  Hydroxy-PEG4-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135932

  m-PEG8-O-alkyne
  m-PEG8-O-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG8-O-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-112560

  Bis-PEG2-PFP ester
  Bis-PEG2-PFP ester is also a non-cleavable 2 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Bis-PEG2-PFP ester is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[2].

• HY-140710

  m-PEG-Tresyl (MW 5000)
  m-PEG-Tresyl (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096094

  Fmoc-N-amido-PEG2-alcohol		99.51%
  Fmoc-N-amido-PEG2-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140903

  Biotin-PEG4-TFP ester		98.21%
  Biotin-PEG4-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140503

  m-PEG8-ethoxycarbonyl-propanoic acid
  m-PEG8-ethoxycarbonyl-propanoic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-124531

  Tetra(cyanoethoxymethyl) methane
  Tetra(cyanoethoxymethyl) methane is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140691

  m-PEG-mal (MW 10000)		99.89%
  m-PEG-mal (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-159680

  OMs-PEG2-NHAlloc-PEG2-Boc
  OMs-PEG2-NHAlloc-PEG2-Boc is a PROTAC linker. OMs-PEG2-NHAlloc-PEG2-Boc can be used in synthesis PROTAC SMARCA2/4-degrader-28 (HY-162835)[1].

• HY-W142506

  Triethylene glycol monododecyl ether
  Triethylene glycol monododecyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141379

  N-Bromoacetyl-β-alanine
  N-Bromoacetyl-β-alanine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Bromoacetyl-β-alanine is also a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-135927

  H2N-PEG2-CH2COOtBu
  H2N-PEG2-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140614

  DNP-PEG4-NHS ester
  DNP-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133296

  Thiol-PEG9-alcohol
  Thiol-PEG9-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096152

  Chloroacetamido-C4-NHBoc
  Chloroacetamido-C4-NHBoc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140633

  Ald-C2-PEG4-azide
  Ald-C2-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Ald-C2-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140396C

  Aminooxy-PEG3-bromide hydrobromide
  Aminooxy-PEG3-bromide hydrobromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140250A

  Tri(Amino-PEG4-amide)-amine TFA
  Tri(Amino-PEG4-amide)-amine TFA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-128833

  Bis-NH2-PEG2
  Bis-NH2-PEG2 (PROTAC Linker 19) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141225

  m-PEG24-alcohol
  m-PEG24-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140459

  2-((Azido-PEG8-carbamoyl)methoxy)acetic acid
  2-((Azido-PEG8-carbamoyl)methoxy)acetic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. 2-((Azido-PEG8-carbamoyl)methoxy)acetic acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140180

  Amino-PEG20-acid
  Amino-PEG20-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141378

  m-PEG12-Br
  m-PEG12-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138415

  Azido-PEG11-CH2COOH
  Azido-PEG11-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG11-CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133310

  Hydroxy-PEG7-CH2-Boc
  Hydroxy-PEG7-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140993

  Bis-Mal-PEG3
  Bis-Mal-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-169992

  1-Bromo-4-(ethynyloxy)butane
  1-Bromo-4-(ethynyloxy)butane is the PROTAC linker of ACBI3 (HY-157228) and can be used in the synthesis of PROTACs[1].

• HY-140042

  Bis-propargyl-O-PEG17
  Bis-propargyl-O-PEG17 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-propargyl-O-PEG17 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138478

  THP-PEG13-Boc
  THP-PEG13-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W012862

  Methyl-PEG2-alcohol		99.97%
  Methyl-PEG2-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140040

  Bis-propargyl-PEG12
  Bis-propargyl-PEG12 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-propargyl-PEG12 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140860

  Trityl-PEG8-azide
  Trityl-PEG8-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Trityl-PEG8-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140486

  Acid-PEG6-mono-methyl ester
  Acid-PEG6-mono-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-22335

  Amino-PEG4-C2-amine
  Amino-PEG4-C2-amine is a PEG-based (4 units) PROTAC linker can be used in the synthesis of PROTACs.

• HY-140074

  endo-BCN-PEG4-Boc
  endo-BCN-PEG4-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141069

  N-(m-PEG4)-N'-(Biotin-PEG2-amido-PEG4)-Cy5
  N-(m-PEG4)-N'-(Biotin-PEG2-amido-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096166

  Bis-acrylate-PEG6
  Bis-acrylate-PEG6 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141375

  m-PEG5-Br
  m-PEG5-Br is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140764

  Azido-PEG3-NHS ester
  Azido-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138471

  Azido-PEG2-C6-OH
  Azido-PEG2-C6-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C6-OH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141311

  m-PEG4-phosphonic acid ethyl ester
  m-PEG4-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140912

  Biotin-PEG11-azide
  Biotin-PEG11-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG11-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138330

  Fmoc-PEG5-NHBoc
  Fmoc-PEG5-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140706

  m-PEG-thiol (MW 2000)
  m-PEG-thiol (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096131

  Chloro-PEG5-chloride
  Chloro-PEG5-chloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168075

  Boc-PIP-Me-CH2-2,7-diazaspiro[3.5]nonane
  Boc-PIP-Me-CH2-2,7-diazaspiro[3.5]nonane is the linker of PROTAC K-Ras Degrader-3 (HY-168054), which can be used in the synthesis of PROTACs[1].

• HY-130882

  HS-PEG7-CH2CH2N3
  HS-PEG7-CH2CH2N3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. HS-PEG7-CH2CH2N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140808

  Azido-PEG3-C3-OH
  Azido-PEG3-C3-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-C3-OH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133380

  DSPE-PEG36-mal
  DSPE-PEG36-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140698

  m-PEG-NHS ester (MW 5000)
  m-PEG-NHS ester (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141128

  Ac4GalNAz		99.99%
  Ac4GalNAz is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Ac4GalNAz is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096070

  Benzyl-PEG6-azide
  Benzyl-PEG6-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzyl-PEG6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141080

  Fluorescein-PEG3-amine
  Fluorescein-PEG3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W017440

  Triethylene glycol
  Triethylene glycol (PROTAC Linker 25) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141075

  N-(m-PEG4)-N'-(4-Hydroxycyclohexyl-1-amido-PEG4)-Cy5
  N-(m-PEG4)-N'-(4-Hydroxycyclohexyl-1-amido-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-42488

  Hydroxy-PEG3-(CH2)2-Boc
  Hydroxy-PEG2-(CH2)2-Boc is a uncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Hydroxy-PEG2-(CH2)2-Boc is extracted from patent WO2004008101A2 (compound 196)[1]. Hydroxy-PEG2-(CH2)2-Boc is also a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-141162

  TCO-PEG12-acid
  TCO-PEG12-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140539

  N-Boc-N-bis(PEG3-acid)
  N-Boc-N-bis(PEG3-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138457

  Azido-PEG20-Boc
  Azido-PEG20-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG20-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-143830

  t-Boc-N-amido-PEG2-C6-Cl
  t-Boc-N-amido-PEG2-C6-Cl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141356

  SPDP-PEG12-NHS ester
  SPDP-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141244

  Hydroxy-PEG3-acrylate
  Hydroxy-PEG3-acrylate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141068

  N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(azide-PEG4)-Cy5
  N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(azide-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(azide-PEG4)-Cy5 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141120

  Boc-NH-PEG10-NHS ester
  Boc-NH-PEG10-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140395

  Aminooxy-PEG8-acid
  Aminooxy-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138465

  THP-C4-PEG4
  THP-C4-PEG4 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140773

  Azido-PEG8-PFP ester
  Azido-PEG8-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-PFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134677

  Bromo-PEG7-Boc
  Bromo-PEG7-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140389

  PEG7-O-MS
  PEG7-O-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133477

  (S)-TCO-PEG3-maleimide
  (S)-TCO-PEG3-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. (S)-TCO-PEG3-maleimide is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-140976A

  Mal-amido-PEG9-amine TFA		99.37%
  Mal-amido-PEG9-amine (TFA) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133322

  m-PEG21-acid
  m-PEG21-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W040231

  Fmoc-NH-PEG3-CH2CH2COOH
  Fmoc-NH-PEG3-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG3-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130894

  Propargyl-PEG12-methane
  Propargyl-PEG12-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG12-methane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-130181

  m-PEG4-amino-Mal
  m-PEG4-amino-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141126

  Azido-PEG4-alpha-D-mannose
  Azido-PEG4-alpha-D-mannose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-alpha-D-mannose is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141288

  N-(Biotin-PEG4)-N-bis(PEG4-Boc)
  N-(Biotin-PEG4)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141265

  Methyltetrazine-PEG8-acid		99.02%
  Methyltetrazine-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140173

  Boc-PEG2-sulfonic acid
  Boc-PEG2-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130175

  Fmoc-NH-PEG4-CH2COOH		99.11%
  Fmoc-NH-PEG4-CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG4-CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133275

  m-PEG24-SH
  m-PEG24-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W889109

  3-(Dimethoxymethyl)-1-oxa-8-azaspiro[4.5]decane
  3-(Dimethoxymethyl)-1-oxa-8-azaspiro[4.5]decane is a PROTAC linker that can be used to synthesize ERD-1233 (HY-169367)[1].

• HY-130985

  9-Decyn-1-ol
  9-Decyn-1-ol is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs. 9-Decyn-1-ol can be used to conjugate GDC-0068 with Lenalidomide to generate INY-03-041. INY-03-041 is a potent, highly selective and PROTAC-based pan-Akt degrader. INY-03-041 inhibits Akt1, Akt2 and Akt3 with IC50s of 2.0 nM, 6.8 nM and 3.5 nM, respectively[1]. 9-Decyn-1-ol is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140656E

  Biotin-PEG-Biotin (MW 10000)
  Biotin-PEG-Biotin (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140650

  Amine-PEG-amine (MW 35000)
  Amine-PEG-amine (MW 35000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141025

  Bis-PEG21-acid
  Bis-PEG21-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140982

  m-PEG8-Mal
  m-PEG8-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140035

  Propargyl-PEG24-amine
  Propargyl-PEG24-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG24-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140792

  Azido-PEG1-C1-Boc
  Azido-PEG1-C1-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-C1-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W655179

  1,4-Dimethylpiperidine
  1,4-Dimethylpiperidine is a PROTAC linker.

• HY-130373

  Propargyl-PEG9-amine
  Propargyl-PEG9-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG9-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141303

  Carboxy-PEG4-phosphonic acid ethyl ester
  Carboxy-PEG4-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138527

  Thiol-C9-PEG4
  Thiol-C9-PEG4 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138392

  Mal-PEG25-NH2 hydrochloride
  Mal-PEG25-NH2 hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-128931

  NH2-Ph-C4-acid-NH2-Me
  NH2-Ph-C4-acid-NH2-Me (PROTAC Linker 31) is an alkyl chain-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141336

  α-Lipoic acid-NHS
  α-Lipoic acid-NHS is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W016429

  H-cis-Hyp-OMe hydrochloride
  H-cis-Hyp-OMe hydrochloride is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). H-cis-Hyp-OMe hydrochloride is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PR

• HY-W096155

  Methyl acetate-PEG1
  Methyl acetate-PEG1 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140091

  N-(Aminooxy-PEG2)-N-bis(PEG3-propargyl)
  N-(Aminooxy-PEG2)-N-bis(PEG3-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Aminooxy-PEG2)-N-bis(PEG3-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140847

  N-Fmoc-N'-(azido-PEG4)-L-Lysine-PFP ester
  N-Fmoc-N'-(azido-PEG4)-L-Lysine-PFP ester is an alkyl/ether and PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Fmoc-N'-(azido-PEG4)-L-Lysine-PFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140374

  Propargyl-PEG2-Tos
  Propargyl-PEG2-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-Tos is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140401

  Aminooxy-PEG3-C2-Boc
  Aminooxy-PEG3-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141372

  Bromo-PEG3-CH2-Boc
  Bromo-PEG3-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W010764

  Biotin-PEG2-Mal
  Biotin-PEG2-Mal is a PEG-based PROTAC linker can be used in the synthesis of PROTAC.

• HY-141297

  Bromo-PEG2-phosphonic acid
  Bromo-PEG2-phosphonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130571

  m-PEG9-Amine
  m-PEG9-Amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG9-Amine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-133454A

  Mal-PEG2-oxyamine TFA
  Mal-PEG2-oxyamine TFA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138349

  THP-PEG6-C2-Boc
  THP-PEG6-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130397

  Pyrene-amido-PEG4-CH2CH2COOH
  Pyrene-amido-PEG4-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140606

  m-PEG3-Sulfone-PEG3-azide
  m-PEG3-Sulfone-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG3-Sulfone-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132019

  Methylamino-PEG7-benzyl
  Methylamino-PEG7-benzyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096138

  m-PEG20-alcohol
  m-PEG20-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141176

  TCO-amine
  TCO-amine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140678

  mPEG-amine (MW 10000)
  mPEG-amine (mPEG-NH2) (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-79125

  Fmoc-Hyp(Bom)-OH
  Fmoc-Hyp(Bom)-OH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-Hyp(Bom)-OH is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs<

• HY-141125

  NHS-PEG4-(m-PEG12)3-ester
  NHS-PEG4-(m-PEG12)3-ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140715

  HO-PEG-amine (MW 3400)
  HO-PEG-amine (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140738

  DSPE-PEG-CH2COOH, MW 5000
  DSPE-PEG-CH2COOH, MW 5000 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134721

  Amine-PEG3-Desthiobiotin		99.87%
  Amine-PEG3-Desthiobiotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-122456

  Fmoc-PEG4-NHS ester
  Fmoc-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141402

  m-PEG4-Hydrazide
  m-PEG4-Hydrazide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-130145

  m-PEG8-CH2COOH
  m-PEG8-CH2COOH is a PEG--based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140932A

  Biotin-PEG4-hydrazide TFA
  Biotin-PEG4-hydrazide (TFA) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141235

  HO-PEG16-OH
  HO-PEG16-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140785

  Azido-PEG36-Boc
  Azido-PEG36-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG36-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W040133

  Mal-amido-PEG8-NHS ester
  Mal-amido-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141234

  HO-PEG13-OH
  HO-PEG13-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130826

  Bis-PEG17-NHS ester
  Bis-PEG17-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG17-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-130912

  DBCO-NH-(CH2)4COOH
  DBCO-NH-(CH2)4COOH is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NH-(CH2)4COOH is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140295

  DBCO-C3-PEG4-NH-Boc
  DBCO-C3-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-C3-PEG4-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140892

  Biotin-PEG12-NHS ester
  Biotin-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130383

  Propargyl-PEG7-acid
  Propargyl-PEG7-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG7-acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG7-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140786

  Azido-PEG4-amido-PEG4-Boc
  Azido-PEG4-amido-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-amido-PEG4-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140297

  Carboxyrhodamine 110-PEG4-DBCO
  Carboxyrhodamine 110-PEG4-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Carboxyrhodamine 110-PEG4-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-43048

  2-(2-((6-Chlorohexyl)oxy)ethoxy)acetic acid
  2-(2-((6-Chlorohexyl)oxy)ethoxy)acetic acid is a PROTACT linker in PROTAC SMARCA2/4-degrader-34 (HY-169279)[1].

• HY-130192

  Cbz-NH-PEG8-C2-acid
  Cbz-NH-PEG8-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130865

  Mal-NH-PEG10-CH2CH2COOPFP ester
  Mal-NH-PEG10-CH2CH2COOPFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138736

  Propargyl-PEG5-Br
  Propargyl-PEG5-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG5-Br is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133387

  HS-C6-PEG9-acid
  HS-C6-PEG9-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133191

  Bis-propargyl-PEG2
  Bis-propargyl-PEG2 is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Bis-propargyl-PEG2 is used for the synthesis of demethylvancomycin dimers[1][2]. Bis-propargyl-PEG2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132080

  Bis-PEG8-t-butyl ester
  Bis-PEG8-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138389

  THP-PEG13-OH
  THP-PEG13-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140670

  m-PEG-acrylate (MW 2000)
  m-PEG-acrylate (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130828

  Bis-PEG25-NHS ester
  Bis-PEG25-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG25-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-130077

  Fmoc-PEG1-CH2CH2-NHS ester
  Fmoc-PEG1-CH2CH2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141030

  N-(m-PEG4)-N'-(azide-PEG4)-Cy3
  N-(m-PEG4)-N'-(azide-PEG4)-Cy3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(m-PEG4)-N'-(azide-PEG4)-Cy3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134755

  Bromo-PEG9-Boc
  Bromo-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141345

  S-acetyl-PEG2-Boc
  S-acetyl-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140493

  Biotin-PEG12-acid
  Biotin-PEG12-acid is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140079

  Bis-PEG23-endo-BCN
  Bis-PEG23-endo-BCN is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-PEG23-endo-BCN is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140964

  Mal-PEG2-C2-Boc
  Mal-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-161444

  Piperazine-acetyl-PIP-AcOH
  Piperazine-acetyl-PIP-AcOH is a PROTAC linker. Piperazine-acetyl-PIP-AcOH can be used for PROTAC synthesis[1].

• HY-D2420

  Biotin-PEG5-Mal
  Biotin-PEG5-Mal is a PROTAC linker, belonging to the PEG class. It can be used for the synthesis of PROTAC molecules[1].

• HY-W040257

  NH2-PEG6-CH2CH2COOH
  NH2-PEG6-CH2CH2COOH is a cleavable 6 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). NH2-PEG6-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132010

  Benzyl-PEG8-azide
  Benzyl-PEG8-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Benzyl-PEG8-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130446

  m-PEG9-NHS ester
  m-PEG9-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140931

  Dde Biotin-PEG4-DBCO
  Dde Biotin-PEG4-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Dde Biotin-PEG4-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141314

  m-PEG4-C6-phosphonic acid ethyl ester
  m-PEG4-C6-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141182

  TCO-C3-PEG3-C3-amine
  TCO-C3-PEG3-C3-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140921

  Biotin-PEG4-amino-t-Bu-DADPS-C6-azide
  Biotin-PEG4-amino-t-Bu-DADPS-C6-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-amino-t-Bu-DADPS-C6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140841

  APN-C3-PEG4-azide		98.56%
  APN-C3-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. APN-C3-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096143

  NH2-PEG3 hydrochloride
  NH2-PEG3 hydrochloride is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-77593

  (2R,4S)-1-(tert-Butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylic acid
  N-tert-Butoxycarbonyl-trans-4-hydroxy-D-proline is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). N-tert-Butoxycarbonyl-trans-4-hydroxy-D-proline is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-141202

  Hydroxy-PEG5-Boc
  Hydroxy-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138507

  Desthiobiotin-PEG4-acid
  Desthiobiotin-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140553

  N-Boc-N-bis-PEG5
  N-Boc-N-bis-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133271

  m-PEG4-SH		99.84%
  m-PEG4-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140319

  DBCO-mPEG (MW 5kDa)		98.41%
  DBCO-mPEG (MW 5kDa) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-mPEG (MW 5kDa) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-135823

  Propargyl-PEG12-bromide
  Propargyl-PEG12-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG12-bromide is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140836

  Boc-NH-PEG4-azide
  Boc-NH-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140207

  Amino-PEG36-alcohol
  Amino-PEG36-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133231

  Bis-PEG10-acid
  Bis-PEG10-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140748

  BnO-PEG4-Boc
  BnO-PEG4-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140228

  m-PEG24-NH2
  m-PEG24-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138402

  Boc-NH-PEG15-C1-acid
  Boc-NH-PEG15-C1-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141163

  TCO-PEG24-acid
  TCO-PEG24-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W018745

  Tetraethylene glycol
  Tetraethylene glycol (PROTAC Linker 18) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-132004

  Tos-O-C4-NH-Boc
  Tos-O-C4-NH-Boc is an alkyl ether-based PROTAC linker can be used in the synthesis of PROTACs, such as BSJ-03-204 (HY-136250)[1].

• HY-141076

  N-(m-PEG4)-N'-(PEG3-Mal)-Cy5
  N-(m-PEG4)-N'-(PEG3-Mal)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130293

  Propargyl-PEG4-CH2CH2-Boc
  Propargyl-PEG4-CH2CH2-Boc is a non-cleavable ADC linker that can be used to synthesize ADC inhibitors of Galectin-3. Propargyl-PEG4-CH2CH2-Boc is a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-CH2CH2-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-41541

  Tetraethylene glycol monotosylate
  Tetraethylene glycol monotosylate is a cleavable and acylhydrazone-based ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Tetraethylene glycol monotosylate also can be used as a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-W013522

  Me-PEG4-Me		99.93%
  Me-PEG4-Me is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140871

  N-(Boc-PEG3)-N-bis(PEG3-azide)
  N-(Boc-PEG3)-N-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Boc-PEG3)-N-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132042

  Bromo-PEG2-MS
  Bromo-PEG2-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W051634

  Propargyl-PEG2-amine
  Propargyl-PEG2-amine is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Propargyl-PEG2-amine is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1][2]. Propargyl-PEG2-amine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138388

  Azido-PEG4-formylhydrazine-Boc
  Azido-PEG4-formylhydrazine-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-formylhydrazine-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140000

  Methylamino-PEG1-acid
  Methylamino-PEG1-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134737

  Boc-NH-PEG1-C5-OH
  Boc-NH-PEG1-C5-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140249

  Tri(Amino-PEG3-amide)-amine
  Tri(Amino-PEG3-amide)-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133342

  H2N-PEG8-Hydrazide
  H2N-PEG8-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-157737A

  GVSKYG-PEG2-azide hydrochloride
  GVSKYG-PEG2-azide (hydrochloride) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups.

• HY-132063

  MS-PEG3-dodecyl
  MS-PEG3-dodecyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130641

  Br-C10-methyl ester
  Br-C10-methyl ester is a PROTAC linker, which refers to the alkyl/ether composition. Br-C10-methyl ester is used in the synthesis of a series of PROTACs (MS432).  PROTACs contain two different ligands connected by a linker; one is the VHL ligand portion and the other is for the target protein[1].

• HY-130898

  BM-PEG3
  BM-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141227

  THP-PEG11-OH
  THP-PEG11-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140400

  Aminooxy-PEG8-methane
  Aminooxy-PEG8-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130443

  Cbz-NH-PEG6-C2-acid
  Cbz-NH-PEG6-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140819

  Bromo-PEG1-C2-azide		99.45%
  Bromo-PEG1-C2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG1-C2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140906

  Biotin-PEG36-PFP ester
  Biotin-PEG36-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096111A

  Trt-PEG4-C2-acid hydrate
  Trt-PEG4-C2-acid (hydrate) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W025896

  Boc-NH-PEG4
  Boc-NH-PEG4 (PROTAC Linker 12) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133362

  Fmoc-NH-PEG16-CH2CH2COOH
  Fmoc-NH-PEG16-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130232

  Mal-amido-PEG2-TFP ester
  Mal-amido-PEG2-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140981

  Mal-amido-PEG24-TFP ester
  Mal-amido-PEG24-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130312

  N-(Azido-PEG4)-N-Boc-PEG4-NHS ester
  N-(Azido-PEG4)-N-Boc-PEG4-NHS ester is a PEG-based PROTAC linker with a terminal azide group. N-(Azido-PEG4)-N-Boc-PEG4-NHS ester is used in the synthesis of PROTACs[1] N-(Azido-PEG4)-N-Boc-PEG4-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133463

  Tetrazine-Ph-PEG5-Ph-tetrazine
  Tetrazine-Ph-PEG5-Ph-tetrazine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-PEG5-Ph-tetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-138480

  Benzyl-PEG13-Boc
  Benzyl-PEG13-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-147205

  Biotin-PEG-OH (MW 1000)
  Biotin-PEG-OH (MW 1000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133190

  Bis-propargyl-PEG7
  Bis-propargyl-PEG7 is a PEG-based PROTAC linker used in the synthesis of PROTACs. Bis-propargyl-PEG7 can be used to synthesize the polymer linked multimers of guanosine-3', 5'-cyclic monophosphates[1]. Bis-propargyl-PEG7 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-134738

  Iodoacetamide-PEG5-NH-Boc
  Iodoacetamide-PEG5-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141278

  Methyltetrazine-PEG4-maleimide
  Methyltetrazine-PEG4-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-PEG4-maleimide is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-132008

  Benzyl-PEG4-THP
  Benzyl-PEG4-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140364

  m-PEG6-MS
  m-PEG6-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-35261A

  Mal-PEG2-NH2 TFA		99.22%
  Mal-PEG2-NH2 (TFA) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130819

  Tos-PEG4-THP
  Tos-PEG4-THP is a PEG-based PROTAC linker can be used in the synthesis of PROTAC K-Ras Degrader-1 (HY-129523)[1].

• HY-140005

  Aminooxy-PEG3-acid
  Aminooxy-PEG3-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-163903

  OH-C2-PEG3-NHCO-C3-COOH
  OH-C2-PEG3-NHCO-C3-COOH is a PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140831

  m-PEG16-azide
  m-PEG16-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG16-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-163208

  VH 032 amide-alkylC9-amine hydrochloride
  VH 032 amide-alkylC9-amine hydrochloride (Linker 33) is TRK ligand conjugated to the degradation tag[1].

• HY-140759

  Azido-PEG10-NHS ester
  Azido-PEG10-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138413

  THP-PEG10-OH
  THP-PEG10-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134745

  DSPE-PEG2-mal
  DSPE-PEG2-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138432

  Boc-NH-PEG26-C2-NH2
  Boc-NH-PEG26-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140878

  Boc-NH-PEG3-propargyl
  Boc-NH-PEG3-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG3-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W096082

  t-Butyl acetate-PEG3-CH2COOH
  t-Butyl acetate-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140345

  L-Homopropargylglycine
  L-Homopropargylglycine is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs. L-homopropargylglycine is an amino acid analog of methionine containing an alkyne moiety that can undergo a classic click chemical reaction with azide containing Alexa Fluor[1][2].

• HY-140015A

  (S,E)-TCO2-PEG3-acid
  (S)-TCO-PEG3-acid is a click chemistry PEG linker with a terminal carboxylic acid(COOH) group. The terminal carboxylic acid is reactive with primary amine groups to form a stable amide bond. (S)-TCO-PEG3-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-141299

  Bromo-PEG2-phosphonic acid diethyl ester
  Bromo-PEG2-phosphonic acid diethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W071583

  N-Boc-PEG9-alcohol
  N-Boc-PEG9-alcohol is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-PEG9-alcohol is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-42490

  N3-PEG3-CH2CH2COOH
  N3-PEG3-CH2CH2COOH a PEG-based PROTAC linker can be used in the synthesis of BI-3663 (HY-111546), BI-4216 and BI-0319. Azido-PEG3-acid is also a non-cleavable 3 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). N3-PEG3-CH2CH2COOH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140328

  4-Bromobutylphosphonic acid
  4-Bromobutylphosphonic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W190966

  t-Boc-Aminooxy-PEG4-t-butyl ester
  t-Boc-Aminooxy-PEG4-t-butyl ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140449

  Diketone-PEG12-Biotin
  Diketone-PEG12-Biotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W090446

  4-Boc-amino-2,2-dimethylbutyric acid
  4-Boc-amino-22-dimethylbutyric acid is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-129968

  AM-Imidazole-PA-Boc		98.22%
  AM-Imidazole-PA-Boc is an alkyl chain-based PROTAC linker can be used in the synthesis of PROTAC IRAK4 degrader-1 (HY-129966)[1].

• HY-140377

  Boc-Aminooxy-PEG4-Tos
  Boc-Aminooxy-PEG4-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138438

  Azido-PEG3-amino-OPSS
  Azido-PEG3-amino-OPSS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-amino-OPSS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133367

  DBCO-NHCO-PEG6-amine
  DBCO-NHCO-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG6-amine is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-126999

  Bis-PEG5-PFP ester
  Bis-PEG5-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W017970

  Boc-C2-NH2
  Boc-C2-NH2 is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140212

  Azido-PEG1-amine
  Azido-PEG1-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-amine is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-143833

  Iodo-PEG7-alcohol
  Iodo-PEG7-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133340

  H2N-PEG5-Hydrazide
  H2N-PEG5-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130903

  m-PEG49-NHS ester
  m-PEG49-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130526

  Tos-PEG6-CH2-Boc
  Tos-PEG6-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140231

  Boc-NH-PEG6-amine
  Boc-NH-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141042

  Bis-(N,N'-carboxyl-PEG4)-Cy5
  Bis-(N,N'-carboxyl-PEG4)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141127

  Azido-PEG4-tetra-Ac-beta-D-glucose
  Azido-PEG4-tetra-Ac-beta-D-glucose is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-tetra-Ac-beta-D-glucose is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-134701

  Acetamido-PEG2-Br
  Acetamido-PEG2-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133162

  Mal-PEG1-Boc
  Mal-PEG1-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132050

  Azido-PEG4-propargyl
  Azido-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.

• HY-138328

  Benzyl-PEG18-MS
  Benzyl-PEG18-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W021401

  Amino-PEG3-C2-Azido
  Amino-PEG3-C2-Azido is a PEG-based PROTAC linker can be used in the synthesis of the PARP1 degrader iRucaparib-TP3 (HY-130645)[1]. Amino-PEG3-C2-Azido is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138448

  m-PEG750-Br
  m-PEG750-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W043841

  Benzyl-PEG2-Tos
  Benzyl-PEG2-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135947

  Boc-NH-PEG11-OH
  Boc-NH-PEG11-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140064

  Propargyl-PEG1-acrylate
  Propargyl-PEG1-acrylate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG1-acrylate is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138343

  Azido-PEG3-MS
  Azido-PEG3-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-MS is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-132108

  Benzyl-PEG3-MS
  Benzyl-PEG3-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140727

  Boc-NH-PEG-amine (MW 5000)
  Boc-NH-PEG-amine (MW 5000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096121

  PEG3		98.00%
  PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140578

  N-Me-N-bis-PEG4
  N-Me-N-bis-PEG4 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W007700

  8-Bromooctanoic acid
  8-Bromooctanoic acid is a PROTAC linker, and can be used for synthesis of PROTAC CYP1B1 degrader-2 (HY-158429)[1].

• HY-143844B

  Bromo-PEG7-amine hydrobromide
  Bromo-PEG7-amine hydrobromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140234

  Boc-NH-PEG11-NH2
  Boc-NH-PEG11-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140610

  Propargyl-PEG4-Sulfone-PEG4-acid
  Propargyl-PEG4-Sulfone-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-Sulfone-PEG4-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140441

  Fmoc-aminooxy-PEG12-acid
  Fmoc-aminooxy-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133341

  H2N-PEG6-Hydrazide
  H2N-PEG6-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168223

  Boc-Piperazine-2-F-Ph-CHO
  Boc-Piperazine-2-F-Ph-CHO (Compound 2) is a PROTAC linker, used for the synthesis of YD54 (HY-168221) [1].

• HY-140530

  Mal-N-bis(PEG4-C2-acid)
  Mal-N-bis(PEG4-C2-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138769

  Azido-PEG12-alcohol
  Azido-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG12-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-A0102

  AMCA
  AMCA (4-(Aminomethyl)-1-cyclohexanecarboxylic acid) is a PROTAC linker. AMCA can be used to synthesize the PROTAC molecule YB-3–17 (HY-170405)[1].

• HY-133309

  HO-PEG24-CH2CH2COOH
  HO-PEG24-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141361

  (2-Pyridyldithio)-PEG2-Boc
  (2-Pyridyldithio)-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132035

  Benzyl-PEG13-alcohol
  Benzyl-PEG13-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096112

  TFP-PEG3-TFP		98.96%
  TFP-PEG3-TFP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140093

  N-(PEG2-Boc)-N-bis(PEG2-propargyl)
  N-(PEG2-Boc)-N-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(PEG2-Boc)-N-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W040245

  Fmoc-amino-PEG5-acid
  Fmoc-amino-PEG5-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138533

  Thiol-C10-amide-PEG8
  Thiol-C10-amide-PEG8 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140790

  Azide-PEG9-amido-C12-Boc
  Azide-PEG9-amido-C12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG9-amido-C12-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130168

  m-PEG5-azide
  m-PEG5-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140155

  Methylamino-PEG2-Boc
  Methylamino-PEG2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130213

  Thiol-PEG4-acid
  Thiol-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130230

  THP-PEG4-OH
  THP-PEG4-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140737

  DSPE-PEG-CH2COOH, MW 2000
  DSPE-PEG-CH2COOH, MW 2000 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140068

  endo-BCN-PEG3-NHS ester
  endo-BCN-PEG3-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG3-NHS ester is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W040244

  Boc-NH-PEG6-CH2CH2COOH
  Boc-NH-PEG6-CH2CH2COOH is a cleavable ADC linker used as a linker for antibody-drug conjugates (ADC). Boc-NH-PEG6-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140321

  DBCO-mPEG (MW 20kDa)
  DBCO-mPEG (MW 20kDa) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-mPEG (MW 20kDa) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-150311

  endo-BCN-PEG24-NHS ester
  endo-BCN-PEG24-NHS ester is composed of a benzocyclonorbornene, a twenty-tetramer of polyethylene glycol (PEG) and an N-hydroxysuccinimide ester. endo-BCN-PEG24-NHS is utilized as linker for synthesis of PROTAC molecule[1].

• HY-W006524

  H2N-PEG2-CH2COOH
  H2N-PEG2-CH2COOH is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-Y0755

  N-Boc-4-hydroxy-L-proline methyl ester
  N-Boc-cis-4-hydroxy-L-proline methyl ester is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). N-Boc-cis-4-hydroxy-L-proline methyl ester is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[2

• HY-133458

  Biotin-PEG3-amido-SS-amido-azide
  Biotin-PEG3-amido-SS-amido-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG3-amido-SS-amido-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130380

  Propargyl-PEG7-Boc
  Propargyl-PEG7-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG7-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133392

  Azido-PEG5-azide
  Azido-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W037355

  4-Maleimidobutyric acid		99.86%
  4-Maleimidobutyric acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140266

  DBCO-PEG2-acid
  DBCO-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG2-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140022

  Propargyl-PEG14-acid
  Propargyl-PEG14-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG14-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-159617

  Cbz-Pip-2C-Pip-C-Pip
  Cbz-Pip-2C-Pip-C-Pip is a PROTAC linker. Cbz-Pip-2C-Pip-C-Pip can be used for synthesis PROTAC Cbl-b-IN-1 (HY-159608)[1].

• HY-132083

  Hydroxy-PEG2-CH2CH2COO-PEG2-propionic acid
  Hydroxy-PEG2-CH2CH2COO-PEG2-propionic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-163788

  C5-CONH-C2-N-CH3
  C5-CONH-C2-N-CH3 is a PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138529

  Thiol-C9-PEG5
  Thiol-C9-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130384

  Propargyl-PEG6-Boc
  Propargyl-PEG6-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Propargyl-PEG6-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138436

  PEG2-ethyl acetate
  PEG2-ethyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140910

  Biotin-PEG4-azide
  Biotin-PEG4-azide is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140938

  Biotin-PEG3-oxyamine
  Biotin-PEG3-oxyamine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168218

  Boc-Piperazine-piperidine-2-F-Ph-CHO
  Boc-Piperazine-piperidine-2-F-Ph-CHO is a PROTAC linker that can be used in the synthesis of YDR1 (HY-168215)[1].

• HY-140181

  Amino-PEG23-acid
  Amino-PEG23-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-108369

  Azido-PEG1-CH2CO2H
  Azido-PEG1-CH2CO2H is a PROTAC linker, which refers to the alkyl/ether composition. Azido-PEG1-CH2CO2H can be used in the synthesis of PROTAC BRD4 Degrader-1[1]. Azido-PEG1-CH2CO2H is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138735

  Propargyl-PEG13-OH
  Propargyl-PEG13-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG13-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140980

  Mal-amido-PEG12-TFP ester
  Mal-amido-PEG12-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168289

  12-((4-Bromobutyl)amino)dodecanoic acid
  12-((4-Bromobutyl)amino)dodecanoic acid is the PROTAC linker of MS934 (HY-153863). 12-((4-Bromobutyl)amino)dodecanoic acid can be utilized in PROTAC synthesis[1].

• HY-135937

  Biotin-PEG9-CH2CH2COOH
  Biotin-PEG9-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140453

  Azido-PEG6-acid
  Azido-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG6-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140897

  Biotin-PEG6-amine
  Biotin-PEG6-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140629

  Ald-Ph-PEG5-Boc
  Ald-Ph-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130376

  Propargyl-PEG8-NHS ester
  Propargyl-PEG8-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG8-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG8-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-133312

  Hydroxy-PEG10-CH2-Boc
  Hydroxy-PEG10-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-139060

  Bis-PEG12-endo-BCN
  Bis-PEG12-endo-BCN is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-PEG12-endo-BCN is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141407

  m-PEG3-amido-C3-triethoxysilane
  m-PEG3-amido-C3-triethoxysilane is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-138492

  Boc-NH-PPG2
  Boc-NH-PPG2 is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130350

  DNP-PEG3-DNP
  DNP-PEG3-DNP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130477

  Fmoc-Lys (biotin-PEG4)-OH
  Fmoc-Lys (biotin-PEG4)-OH is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140447

  Diketone-PEG11-PFP ester
  Diketone-PEG11-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133291

  Thiol-PEG6-acid
  Thiol-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130874

  HS-PEG7-CH2CH2COOH
  HS-PEG7-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138467

  Mal-PFP ester
  Mal-PFP ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140114

  Acid-PEG4-S-S-PEG4-acid
  Acid-PEG4-S-S-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135804

  NH2-PEG3-C2-Boc
  NH2-PEG3-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140658

  Biotin-PEG-triethoxysilane (MW 2000)
  Biotin-PEG-triethoxysilane (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126960

  Mal-PEG1-acid
  Mal-PEG1-acid is is a non-cleavable 1 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Mal-PEG1-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-133505

  Me-Tet-PEG4-NH2 hydrochloride
  Me-Tet-PEG4-NH2 (hydrochloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Me-Tet-PEG4-NH2 (hydrochloride) is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-140725

  Boc-NH-PEG-amine (MW 2000)
  Boc-NH-PEG-amine (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135824

  m-PEG12-2-methylacrylate
  m-PEG12-2-methylacrylate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138731

  Mal-amido-PEG9-NHS ester
  Mal-amido-PEG9-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135923

  Cbz-NH-PEG2-CH2COOH		99.70%
  Cbz-NH-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138748

  S-acetyl-PEG5-alcohol
  S-acetyl-PEG5-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-143835

  Acid-PEG9-t-butyl ester
  Acid-PEG9-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133375

  DBCO-NHCO-PEG2-NHS ester
  DBCO-NHCO-PEG2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-NHCO-PEG2-NHS ester is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140988

  Mal-NH2 TFA
  Mal-NH2 (TFA) is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135936

  m-PEG9-C4-SH
  m-PEG9-C4-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140421

  Boc-Aminooxy-PEG2
  Boc-Aminooxy-PEG2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140255

  N-(Amino-PEG4)-N-bis(PEG4-Boc)
  N-(Amino-PEG4)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138411

  Cl-PEG6-acid
  Cl-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140445

  1,1,1-Trifluoroethyl-PEG4-aminooxy
  1,1,1-Trifluoroethyl-PEG4-aminooxy is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141351

  m-PEG3-S-Acetyl
  m-PEG3-S-Acetyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126890

  Bis-PEG7-NHS ester
  Bis-PEG7-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG7-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-130151

  m-PEG7-CH2CH2COOH
  m-PEG7-CH2CH2COOH is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). m-PEG7-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140760

  Azido-PEG12-NHS ester
  Azido-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG12-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W007853

  2-(Benzyloxy)ethanol		99.93%
  2-(Benzyloxy)ethanol is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133313

  Hydroxy-PEG12-CH2-Boc
  Hydroxy-PEG12-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141033

  Cy5-PEG4-acid
  Cy5-PEG4-acid (chloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134706

  Acetamido-PEG3-Br
  Acetamido-PEG3-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141188

  TCO-PEG4-TCO
  TCO-PEG4-TCO is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140915

  Biotin-PEG4-Picolyl azide		98.66%
  Biotin-PEG4-Picolyl azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-Picolyl azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140250

  Tri(Amino-PEG4-amide)-amine
  Tri(Amino-PEG4-amide)-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141045

  N-(m-PEG4)-N'-(PEG2-NHS ester)-Cy5		99.74%
  N-(m-PEG4)-N'-(PEG2-NHS ester)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141396

  m-PEG5-Boc
  m-PEG5-Boc is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-141210

  Hydroxy-PEG4-O-Boc
  Hydroxy-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132120

  Amino-PEG2-CH2CH2-SH hydrochloride
  Amino-PEG2-CH2CH2-SH (hydrochloride) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141339

  Lipoamide-PEG11-Mal
  Lipoamide-PEG11-Mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W034918

  Docosanedioic acid
  Docosanedioic acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Docosanedioic acid is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140736

  DSPE-PEG-Biotin, MW 2000
  DSPE-PEG-Biotin, MW 2000 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133400

  endo-BCN-PEG3-mal
  endo-BCN-PEG3-mal is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. endo-BCN-PEG3-mal is a click chemistry reagent, it contains a BCN group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-141374

  Bromo-PEG5-bromide
  Bromo-PEG5-bromide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140473

  Boc-NH-PEG20-CH2CH2COOH
  Boc-NH-PEG20-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132084

  Bromoacetamido-PEG8-t-butyl acetate
  Bromoacetamido-PEG8-t-butyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130197

  Lipoamido-PEG4-azide
  Lipoamido-PEG4-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Lipoamido-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W012935

  Piperidine-4-carbaldehyde
  Piperidine-4-carbaldehyde (Piperidine-4-carboxaldehyde) is a PROTAC Linker. Piperidine-4-carbaldehyde can be used to optimize combined with the target protein affinity, thus improve the PROTAC the molecular degradation efficiency. Piperidine-4-carbaldehyde can be used in the CDK2 PROTACs (HY-161708)[1].

• HY-138422

  Iodoacetyl-PEG4-NHS ester
  Iodoacetyl-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140050

  Boc-aminooxy-PEG2-propargyl
  Boc-aminooxy-PEG2-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-aminooxy-PEG2-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W017440R

  Triethylene glycol (Standard)
  Triethylene glycol (Standard) is the analytical standard of Triethylene glycol. This product is intended for research and analytical applications. Triethylene glycol (PROTAC Linker 25) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-134687

  Iodoacetamide-PEG5-azide		98.58%
  Iodoacetamide-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Iodoacetamide-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W018464

  N-Boc-serinol
  N-Boc-serinol is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140446

  N-(Aminooxy-PEG3)-N-bis(PEG4-Boc)
  N-(Aminooxy-PEG3)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141237

  HO-PEG21-OH		98.62%
  HO-PEG21-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096083

  Ethyl-PEG4-alcohol		98.54%
  Ethyl-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168726

  Octane-1,8-diamine-Glycolic acid
  Octane-1,8-diamine-Glycolic acid is a PROTAC linker that can be used to synthesize PROTAC molecules (HY-168725) for research in the cancer[1].

• HY-128844

  Bis-NH2-C1-PEG3
  Bis-NH2-C1-PEG3 (PROTAC Linker 24) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140385

  Ms-PEG8-Boc
  Ms-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141110

  m-PEG37-NHS ester
  m-PEG37-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140820

  Bromo-PEG3-azide
  Bromo-PEG4-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bromo-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140397

  m-PEG2-Amino
  m-PEG2-Amino is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W037980

  Succinamic acid
  Succinamic acid is a weak inhibitor for human LL-xylose reductase with an IC50 of 1.45 mM. Succinamic acid can be used as a linker for synthesis of CQ-16 (HY-169336)[1][2].

• HY-140780

  Azido-PEG9-Boc
  Azido-PEG9-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG9-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-135922

  m-PEG6-Hydrazide
  m-PEG6-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130420

  Azido-PEG5-PFP ester
  Azido-PEG5-PFP ester is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1]. Azido-PEG5-PFP ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130892

  (+)-Biotin-PEG2-hydrazide
  (+)-Biotin-PEG2-hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141079

  N,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7
  N,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-161499

  Boc-NHCH2-Ph-pyrimidine-NH2
  Boc-NHCH2-Ph-pyrimidine-NH2 is the linker for PROTAC molecule XYD198 (HY-161498)[1].

• HY-42359

  N-(4-Carboxycyclohexylmethyl)maleimide
  N-(4-Carboxycyclohexylmethyl)maleimide is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140555

  N-Boc-N-bis(PEG3-azide)
  N-Boc-N-bis(PEG3-azide) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Boc-N-bis(PEG3-azide) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140577

  N-Me-N-bis-PEG3
  N-Me-N-bis-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140225

  m-PEG5-NH2
  m-PEG5-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-147205D

  Biotin-PEG-OH (MW 10000)
  Biotin-PEG-OH (MW 10000) is a PEG-based PROTAC linker can be used in the synthesis of PROTAC[1].

• HY-141196

  N-Boc-PEG36-alcohol
  N-Boc-PEG36-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140392

  Boc-N-Amido-PEG5-MS
  Boc-N-Amido-PEG5-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W075674

  Butane-1,4-diyldiphosphonic acid
  Butane-1,4-diyldiphosphonic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140978

  Mal-amido-PEG4-TFP ester
  Mal-amido-PEG4-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-128847

  Bis-PEG1-C-PEG1-CH2COOH
  Bis-PEG1-C-PEG1-CH2COOH (PROTAC Linker 26) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140061

  Propargyl-PEG11-methane
  Propargyl-PEG11-methane is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG11-methane is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140732

  Dioxoisoindolin-O-PEG-OH (MW 2000)
  Dioxoisoindolin-O-PEG-OH (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140968

  Mal-PEG2-alcohol		99.67%
  Mal-PEG2-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133357

  Cbz-NH-PEG10-CH2COOH
  Cbz-NH-PEG10-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140828

  m-PEG4-azide
  m-PEG4-azide (13-Azido-2,5,8,11-tetraoxatridecane) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. m-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W004945

  3,6-Dioxaoctanedioic acid
  36-Dioxaoctanedioic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134751

  VES-POFP
  VES-POFP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-129773

  Phthalimide-PEG4-PDM-OTBS
  Phthalimide-PEG4-PDM-OTBS is a PROTAC linker, which refers to the PEGs composition. Phthalimide-PEG4-PDM-OTBS can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-130873

  HS-PEG7-CH2CH2NH2
  HS-PEG7-CH2CH2NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133211

  Mal-PEG6-Boc
  Mal-PEG6-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140540

  N-Boc-N-bis(PEG4-acid)
  N-Boc-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-113921

  m-PEG4-propargyl
  m-PEG4-propargyl is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140393

  N-(Tos-PEG4)-N-bis(PEG4-Boc)
  N-(Tos-PEG4)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W044078

  N-Boc-diethanolamine
  N-Boc-diethanolamine is an Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. N-Boc-diethanolamine is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-140425

  Boc-Aminooxy-PEG1-C2-NH2
  Boc-Aminooxy-PEG1-C2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130386

  Propargyl-PEG6-acid
  Propargyl-PEG6-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Propargyl-PEG6-acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Propargyl-PEG6-acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140581

  N-(Azido-PEG3)-N-Biotin-PEG4-methyl ester
  N-(Azido-PEG3)-N-Biotin-PEG4-methyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG3)-N-Biotin-PEG4-methyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140924

  Dde Biotin-PEG4-alkyne
  Dde Biotin-PEG4-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Dde Biotin-PEG4-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138341

  Benzyl-PEG10-THP
  Benzyl-PEG10-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-160069

  Fmoc-Gly-Gly-Gly-NH-PEG4-C2-COOH
  Fmoc-Gly-Gly-Gly-NH-PEG4-C2-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]

• HY-138707

  Azido-PEG7-NHS ester
  Azido-PEG7-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG7-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140940

  Biotin-PEG4-methyltetrazine
  Biotin-PEG4-methyltetrazine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-methyltetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-W017882

  (2R,4S)-1-tert-Butyl 2-methyl 4-hydroxypyrrolidine-1,2-dicarboxylate
  Boc-trans-D-Hyp-OMe is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Boc-trans-D-Hyp-OMe is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-140243

  1,1,1-Trifluoroethyl-PEG4-amine
  111-Trifluoroethyl-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140582

  N-(DBCO-PEG4)-N-Biotin-PEG4-NHS
  N-(DBCO-PEG4)-N-Biotin-PEG4-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(DBCO-PEG4)-N-Biotin-PEG4-NHS is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-138494

  Boc-NH-PEG12-NH-Boc
  Boc-NH-PEG12-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140471

  Boc-NH-PEG10-CH2CH2COOH
  Boc-NH-PEG10-CH2CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138332

  Benzyl-PEG24-MS
  Benzyl-PEG24-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140211

  Amino-PEG23-amine
  Amino-PEG23-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134691

  Propanol-PEG6-CH2OH
  Propanol-PEG6-CH2OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134675

  THP-PEG4-C1-OH
  THP-PEG4-C1-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126948

  Aminooxy-PEG1-azide
  Aminooxy-PEG1-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Aminooxy-PEG1-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140346AS

  L-Azidohomoalanine-1,2,3,4-13C4 hydrochloride
  L-Azidohomoalanine-1,2,3,4-13C4 (hydrochloride) is the 13C- and 15N-labeled L-Azidohomoalanine hydrochloride. L-Azidohomoalanine hydrochloride is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1]. L-Azidohomoalanine-1,2,3,4-13C4 (hydrochloride) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133462

  Tetrazine-Ph-NHCO-PEG4-NH-Boc
  Tetrazine-Ph-NHCO-PEG4-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Tetrazine-Ph-NHCO-PEG4-NH-Boc is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-141168

  TCO-PEG6-NHS ester
  TCO-PEG6-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140990

  6-Maleimidocaproic acid-PFP ester
  6-Maleimidocaproic acid-PFP ester is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140292

  DBCO-PEG9-NH-Boc
  DBCO-PEG9-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG9-NH-Boc is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-168552

  3-Hydroxyazetidine-Cyclohexanol
  3-Hydroxyazetidine-Cyclohexanol is a PROTAC linker that can be used in the synthesis of ALK PROTAC (HY-168551)[1].

• HY-W096066

  Benzyl-PEG8-THP
  Benzyl-PEG8-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130669

  Ald-Ph-amido-C2-PEG3-NH-Boc
  Ald-Ph-amido-C2-PEG3-NH-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140082

  Hydroxy-Amino-bis(PEG2-propargyl)
  Hydroxy-Amino-bis(PEG2-propargyl) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Hydroxy-Amino-bis(PEG2-propargyl) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138421

  Hydroxy-PEG4-methyl acetate
  Hydroxy-PEG4-methyl acetate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126950

  Aminooxy-PEG4-azide
  Aminooxy-PEG4-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Aminooxy-PEG4-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138526

  Thiol-C9-PEG4-acid
  Thiol-C9-PEG4-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141385

  N-Succinimidyl 3-(Bromoacetamido)propionate
  N-Succinimidyl 3-(Bromoacetamido)propionate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-Succinimidyl 3-(Bromoacetamido)propionate is also a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[2].

• HY-138355

  CHO-CH2-PEG1-CH2-Boc
  CHO-CH2-PEG1-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126963

  Mal-PEG6-acid
  Mal-PEG6-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-140354

  Azide-PEG7-Tos
  Azide-PEG7-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG7-Tos is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130858

  Mal-amido-PEG16-acid
  Mal-amido-PEG16-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132017

  Bromo-PEG4-NHS ester
  Bromo-PEG4-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130831

  Hydroxy-PEG12-Boc
  Hydroxy-PEG12-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140813

  Azido-PEG3-phosphonic acid ethyl ester
  Azido-PEG3-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG3-phosphonic acid ethyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140767

  Azido-PEG8-C1-NHS ester
  Azido-PEG8-C1-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-C1-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138712

  Benzyl-PEG9-Ots
  Benzyl-PEG9-Ots is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140885

  Boc-NH-PEG12-propargyl
  Boc-NH-PEG12-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-NH-PEG12-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140757

  Azido-PEG5-NHS ester
  Azido-PEG5-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG5-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-115392

  Ms-PEG12-m
  Ms-PEG12-m is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141315

  m-PEG6-C6-phosphonic acid ethyl ester
  m-PEG6-C6-phosphonic acid ethyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132016

  Benzyl-PEG8-NHS ester
  Benzyl-PEG8-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141404

  m-PEG4-CH2-methyl ester
  m-PEG4-CH2-methyl ester is a PEG- and Alkyl/ester-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133468

  Methyltetrazine-PEG6-maleimide
  Methyltetrazine-PEG6-maleimide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methyltetrazine-PEG6-maleimide is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

• HY-140534

  4-(N-Boc-amino)-1,6-heptanedioic acid
  4-(N-Boc-amino)-1,6-heptanedioic acid is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140378

  t-Boc-Aminooxy-PEG8-MS
  t-Boc-Aminooxy-PEG8-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140851

  Azido-PEG1-methyl ester
  Azido-PEG1-methyl ester is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG1-methyl ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140159

  Methylamino-PEG5-azide
  Methylamino-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Methylamino-PEG5-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W067061

  Hydroxy-PEG2-(CH2)2-Boc
  Hydroxy-PEG2-(CH2)2-Boc is a uncleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Hydroxy-PEG2-(CH2)2-Boc is extracted from patent WO2004008101A2 (compound 196)[1]. Hydroxy-PEG2-(CH2)2-Boc is also a PROTAC linker that can be used in the synthesis of PROTACs.

• HY-133273

  m-PEG3-SH
  m-PEG3-SH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132064

  FmocNH-PEG4-t-butyl ester
  FmocNH-PEG4-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-126888

  Mal-PEG5-NHS ester		99.04%
  Mal-PEG5-NHS ester is an Alkyl/ether and PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-143829

  t-Boc-N-amido-PEG15-Br
  t-Boc-N-amido-PEG15-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141377

  m-PEG9-Br
  m-PEG9-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132101

  Amino-PEG7-t-butyl ester
  Amino-PEG7-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138377

  Azido-PEG8-C-Boc
  Azido-PEG8-C-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG8-C-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-126916

  Tetrahydropyranyldiethyleneglycol
  Tetrahydropyranyldiethyleneglycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140016

  Bis-(m-PEG4)-amidohexanoic acid
  Bis-(m-PEG4)-amidohexanoic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140922

  Biotin-PEG4-alkyne
  Biotin-PEG4-alkyne is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140870

  N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester)
  N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130520

  Bromoacetamido-PEG4-C2-Boc
  Bromoacetamido-PEG4-C2-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140261

  NH-bis(PEG4-C2-NH-Boc)
  NH-bis(PEG4-C2-NH-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130881

  HS-PEG6-CH2CH2-Boc
  HS-PEG6-CH2CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W000434

  Fmoc-NH-PEG4-CH2CH2COOH
  Fmoc-NH-PEG4-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG4-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096160

  Bis-acrylate-PEG5
  Bis-acrylate-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-115384

  Amino-PEG5-C2-acid
  Amino-PEG5-C2-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Amino-PEG5-C2-acid is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-141092

  Pyrene-PEG2-azide
  Pyrene-PEG2-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Pyrene-PEG2-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141085

  Carboxyfluorescein-PEG12-NHS
  Carboxyfluorescein-PEG12-NHS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-164951

  C1-BCEA-Acm
  C1-BCEA-Acm is a linker, that can be used for synthesis of polyubiquitin chains and ubiquitin-modified substrates[1].

• HY-140168

  Carboxy-PEG4-sulfonic acid
  Carboxy-PEG4-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141365

  Bromo-PEG2-C2-Boc
  Bromo-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140714

  HO-PEG-amine (MW 2000)
  HO-PEG-amine (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140414

  t-Boc-Aminooxy-PEG12-acid
  t-Boc-Aminooxy-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096158

  Ph-PEG3
  Ph-PEG3 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-147052

  Boc-Pip-butyn
  Boc-Pip-butyn is an Alkyl/ether-based PROTAC linker[1]. Boc-Pip-butyn is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140776

  Azido-PEG2-C2-Boc
  Azido-PEG2-C2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG2-C2-Boc is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140194

  Amino-PEG5-Boc
  Amino-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134732

  N-Ethylpropionamide-PEG1-Br
  N-Ethylpropionamide-PEG1-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138723

  Mal-PEG10-acid
  Mal-PEG10-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W090623

  Tos-PEG2-OH
  Tos-PEG2-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141330

  m-PEG8-thiol		99.94%
  m-PEG8-thiol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W042625

  Hexaethylene glycol monomethyl ether
  Hexaethylene glycol monomethyl ether is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140456

  Azido-PEG12-acid
  Azido-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG12-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140469

  Boc-NH-PEG7-acid
  Boc-NH-PEG7-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140905

  Biotin-PEG24-TFP ester
  Biotin-PEG24-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-135913

  Cbz-NH-PEG3-CH2COOH
  Cbz-NH-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W004710

  NH2-C5-NH-Boc
  NH2-C5-NH-Boc (PROTAC Linker 23) is an alkyl chain-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-133317

  Azido-PEG11-acid
  Azido-PEG11-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG11-acid is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-141046

  N-(m-PEG4)-N'-(PEG4-NHS ester)-Cy5
  N-(m-PEG4)-N'-(PEG4-NHS ester)-Cy5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140918

  Diazo Biotin-PEG3-azide
  Diazo Biotin-PEG3-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Diazo Biotin-PEG3-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140512

  Acid-PEG5-TEMPO
  Acid-PEG5-TEMPO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140999

  Mal-PEG4-Lys(t-Boc)-NH-m-PEG24
  Mal-PEG4-Lys(t-Boc)-NH-m-PEG24 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140301

  DBCO-PEG4-Desthiobiotin
  DBCO-PEG4-Desthiobiotin is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG4-Desthiobiotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-125887

  Boc-NH-PEG2-C2-amido-C4-acid
  Boc-NH-PEG2-C2-amido-C4-acid (PROTAC Linker 30) is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140249A

  Tri(Amino-PEG3-amide)-amine TFA
  Tri(Amino-PEG3-amide)-amine TFA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140027

  Propargyl-PEG3-Boc
  Propargyl-PEG3-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG3-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-134702

  Mal-PEG12-CHO
  Mal-PEG12-CHO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138384

  Br-PEG9-C2-NHBoc
  Br-PEG9-C2-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138496

  F-PEG2-SO-COOH
  F-PEG2-SO-COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138505

  Iodoacetamido-PEG6-acid
  Iodoacetamido-PEG6-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-40142

  1-N-Boc-3-hydroxyazetidine
  1-N-Boc-3-hydroxyazetidine is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). 1-N-Boc-3-hydroxyazetidine is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs

• HY-134742

  3-Aminophenol-PEG4-methyl
  3-Aminophenol-PEG4-methyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133355

  Boc-NH-PEG12-NH2
  Boc-NH-PEG12-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140624

  Ald-Ph-PEG12-TFP ester
  Ald-Ph-PEG12-TFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140048

  Propargyl-PEG4-5-nitrophenyl carbonate
  Propargyl-PEG4-5-nitrophenyl carbonate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-5-nitrophenyl carbonate is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140166

  Bis-PEG4-sulfonic acid
  Bis-PEG4-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140380

  Tos-aminoxy-Boc-PEG4-Tos
  Tos-aminoxy-Boc-PEG4-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130561

  m-PEG7-azide
  m-PEG7-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG7-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-138398

  BOC-NH-PEG2-propene
  BOC-NH-PEG2-propene is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-162949

  Piperidin-4-amine-C5-O-C1
  Piperidin-4-amine-C5-O-C1 is a PROTAC (compound D4; HY-168037) linker used in the synthesis of PROTACs[1].

• HY-140372

  Tos-PEG20-Tos
  Tos-PEG20-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140664

  Azide-PEG-azide (MW 2000)
  Azide-PEG-azide (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG-azide (MW 2000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140934

  Biotin-PEG2-NH-Boc
  Biotin-PEG2-NH-Boc is a biotin-labeled, PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133339

  H2N-PEG4-Hydrazide
  H2N-PEG4-Hydrazide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W039168

  Bromo-PEG3-C2-acid
  Bromo-PEG3-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141268

  Methyltetrazine-Sulfo-NHS ester sodium
  Methyltetrazine-Sulfo-NHS ester (sodium) is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-125541

  DBCO-NHCO-PEG4-acid
  DBCO-Amide-PEG5-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. DBCO-Amide-PEG5-acid is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. DBCO-NHCO-PEG4-acid is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140026

  Propargyl-PEG1-Boc
  Propargyl-PEG1-Boc is an alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG1-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-140576

  N-Mal-N-bis(PEG2-C2-Boc)
  N-Mal-N-bis(PEG2-C2-Boc) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130330

  Ald-CH2-PEG5-Boc
  Ald-CH2-PEG5-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140056

  Aminooxy-PEG1-propargyl
  Aminooxy-PEG1-propargyl is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Aminooxy-PEG1-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138442

  Benzyl-PEG16-THP
  Benzyl-PEG16-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140671

  m-PEG-acrylate (MW 10000)
  m-PEG-acrylate (MW 10000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141108

  m-PEG17-NHS ester
  m-PEG17-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140719

  Mal-PEG-mal (MW 2000)
  Mal-PEG-mal (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140587

  N-Benzyl-N-bis-PEG4
  N-Benzyl-N-bis-PEG4 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138514

  CH2COOH-PEG9-CH2COOH
  CH2COOH-PEG9-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141212

  Hydroxy-PEG3-PFP ester
  Hydroxy-PEG3-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133292

  Thiol-PEG4-alcohol
  Thiol-PEG4-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140487

  Cbz-NH-PEG2-C2-acid
  Cbz-NH-PEG2-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-133325

  m-PEG49-acid
  m-PEG49-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W039197

  Acid-PEG4-mono-methyl ester
  Acid-PEG4-mono-methyl ester is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs[1].

• HY-140327

  [10-(Diethoxy-phosphoryl)-decyl]-phosphonic acid
  [10-(Diethoxy-phosphoryl)-decyl]-phosphonic acid is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140647

  PEG-bis-amine (MW 3400)
  PEG-bis-amine (Poly(ethylene glycol)-bis-amine) (MW 3400) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096142

  Benzyl-PEG2-acid
  Benzyl-PEG2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-120761

  Amino-PEG10-OH
  Amino-PEG10-OH is non-cleavable 10 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Amino-PEG10-OH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140879

  Boc-N-Amido-PEG4-propargyl
  Boc-N-Amido-PEG4-propargyl is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-N-Amido-PEG4-propargyl is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W096098

  Biotin-PEG3-CH2COOH
  Biotin-PEG3-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W008296

  NH2-C6-NH-Boc
  NH2-C6-NH-Boc is a PROTAC linker which refers to the alkyl/ether composition. NH2-C6-NH-Boc can be used in the synthesis the Mcl-1 inhibitor based on PROTAC[1].

• HY-133065

  m-PEG5-NHS ester
  m-PEG5-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs.

• HY-138474

  Boc-PEG1-PPG2-C2-azido
  Boc-PEG1-PPG2-C2-azido is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Boc-PEG1-PPG2-C2-azido is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-W096161

  Bis-methacrylate-PEG5
  Bis-methacrylate-PEG5 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130846

  Pip-alkyne-Ph-COOCH3
  Pip-alkyne-Ph-COOCH3 is an alkyl chain-based PROTAC linker can be used in the synthesis of PROTAC ARD-266[1]. Pip-alkyne-Ph-COOCH3 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-168238

  (4-(3-Bromobenzyl)piperazin-1-yl)(piperidin-4-yl)methanone
  (4-(3-Bromobenzyl)piperazin-1-yl)(piperidin-4-yl)methanone is a PROTAC linker, used for the synthesis of PROTAC SMARCA2 degrader-28(HY-168236)[1].

• HY-43614

  Propynol Ethoxylate
  Propynol Ethoxylate is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propynol Ethoxylate is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141273

  Methyltetrazine-PEG8-PFP ester		98.06%
  Methyltetrazine-PEG8-PFP ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138730

  Mal-amido-PEG7-NHS ester
  Mal-amido-PEG7-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130872A

  HS-PEG5-CH2CH2NH2 hydrochloride
  HS-PEG5-CH2CH2NH2 hydrochloride is a PROTAC linker and belongs to the PEG class. Can be used to synthesize PROTAC molecules.

• HY-138362

  Br-PEG6-C2-acid
  Br-PEG6-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140039

  Bis-propargyl-PEG11
  Bis-propargyl-PEG11 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Bis-propargyl-PEG11 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-128835

  Phenol-amido-C1-PEG3-N3		99.87%
  Phenol-amido-C1-PEG3-N3 (PROTAC Linker 21) is an PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. Phenol-amido-C1-PEG3-N3 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-43538

  5-Bromopentanoyl chloride		98.63%
  5-Bromopentanoyl chloride is a PROTAC linker in PROTAC ATR degrader-2 (HY-161615), and can be used for synthesis of PROTACs[1].

• HY-45669

  Fmoc-Gly-Gly-Phe-Gly-CH2-O-CH2-Cbz
  Fmoc-Gly-Gly-Phe-Gly-CH2-O-CH2-Cbz is a PROTAC linker and a maleimide-GGFG peptide linker. Fmoc-Gly-Gly-Phe-Gly-CH2-O-CH2-Cbz can be used in the synthesis of the Deruxtecan[1].

• HY-W086181

  Boc-piperazine-pyridine-COOH
  Boc-piperazine-pyridine-COOH is a PROTAC Linker that can be used to synthesize PROTAC YW-N-7 (HY-170855)[1].

• HY-140571

  N-Mal-N-bis(PEG2-NHS ester)
  N-Mal-N-bis(PEG2-NHS ester) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140579

  N-Me-N-bis(PEG4-acid)
  N-Me-N-bis(PEG4-acid) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-35261

  Mal-PEG2-NH2
  Mal-PEG2-NH2 is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-168306

  8-Iodooctan-1-amine
  8-Iodooctan-1-amine is a PROTAC linker that can be used in the synthesis of PROTAC MS154N (HY-157579)[1].

• HY-163960

  NH2-Ph-NH-cyclohexane-NH-Boc
  NH2-Ph-NH-cyclohexane-NH-Boc is a PROTAC linker. NH2-Ph-NH-cyclohexane-NH-Boc can be used in synthesis PROTAC erf3a Degrader-1 (HY-163938)[1].

• HY-141089

  Carboxyrhodamine 110-PEG4-alkyne
  Carboxyrhodamine 110-PEG4-alkyne is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134754

  Bromo-PEG12-acid
  Bromo-PEG12-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-132076

  Azido-PEG10-azide
  Azido-PEG10-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azido-PEG10-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140284A

  DBCO-PEG6-amine TFA		99.42%
  DBCO-PEG6-amine TFA is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. DBCO-PEG6-amine (TFA) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-W007341R

  Pentaethylene glycol (Standard)
  Pentaethylene glycol (Standard) is the analytical standard of Pentaethylene glycol. This product is intended for research and analytical applications. Pentaethylene glycol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138390

  NH2-PEG10-C2-dimethylamino
  NH2-PEG10-C2-dimethylamino is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134715

  Fmoc-N-amido-PEG4-amine
  Fmoc-N-amido-PEG4-amine is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138410

  Boc-NH-PEG11-C2-acid
  Boc-NH-PEG11-C2-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-144078

  Bromo-PEG8-CH2COOtBu
  Bromo-PEG8-CH2COOtBu is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140416

  Boc-Aminooxy-PEG4-CH2CO2H
  Boc-Aminooxy-PEG4-CH2CO2H is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-W096165

  t-Boc-N-amido-PEG6-Tos
  t-Boc-N-amido-PEG6-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140167

  Carboxy-PEG2-sulfonic acid
  Carboxy-PEG2-sulfonic acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-141389

  Bromoacetamido-PEG8-Boc
  Bromoacetamido-PEG8-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140094

  N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester
  N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-W021787

  NH2-PEG4-CH2CH2COOH
  NH2-PEG4-CH2CH2COOH is a cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs). NH2-PEG4-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

• HY-133301

  HO-PEG8-CH2COOH
  HO-PEG8-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-138381

  Br-PEG6-C2-NHBoc
  Br-PEG6-C2-NHBoc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140513

  Active-mono-sulfone-PEG8-acid
  Active-mono-sulfone-PEG8-acid is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-119429

  Bis-PEG4-acid
  Bis-PEG4-acid is a PEG PROTAC linker.

• HY-117042

  Biotin-PEG2-C6-azide
  Biotin-PEG2-C6-azide is a PEG-based PROTAC linker can be used in the synthesis of PROTAC. Biotin-PEG2-C6-azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-133044

  Boc-Pip-alkyne-Ph-COOH
  Boc-Pip-alkyne-Ph-COOH is a PROTAC linker, which refers to the alkyl/ether composition. Boc-Pip-alkyne-Ph-COOH can be used in the synthesis of a series of PROTACs, such as ARD-266 (HY-133020). ARD-266 effectively induces degradation of androgen receptor (AR) protein in AR-positive LNCaP, VCaP, and 22Rv1 prostate cancer cell lines with DC50 values of 0.2-1 nM[1]. Boc-Pip-alkyne-Ph-COOH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-132025

  Benzyl-PEG7-t-butyl ester
  Benzyl-PEG7-t-butyl ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140689

  m-PEG-mal (MW 2000)
  m-PEG-mal (MW 2000) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130549

  Acid-PEG3-C2-Boc
  Acid-PEG3-C2-Boc is a PEG- and Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs for the degradation of EGFR and inhibition of mTOR[1][2].

• HY-140353

  Azide-PEG6-Tos		98.60%
  Azide-PEG6-Tos is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG6-Tos is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-140316

  m-PEG8-DBCO
  m-PEG8-DBCO is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. m-PEG8-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

• HY-140015

  TCO-PEG3-acid
  TCO-PEG3-acid is a PEG-based PROTAC linker can be used in the synthesis of PROTACs[1]. TCO-PEG3-acid is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.

• HY-130824

  Bis-PEG10-NHS ester
  Bis-PEG10-NHS ester is a PEG/Alkyl/ether-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG10-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-117031

  m-PEG8-MS
  m-PEG8-MS is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. m-PEG8-MS is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-132033

  Bromo-PEG3-THP
  Bromo-PEG3-THP is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-134743

  m-PEG21-OH
  m-PEG21-OH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140030

  Propargyl-PEG14-Boc
  Propargyl-PEG14-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG14-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-138406

  Boc-NH-PEG8-C2-Br
  Boc-NH-PEG8-C2-Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-130619

  Boc-C1-PEG3-C4-OBn
  Boc-C1-PEG3-C4-OBn (PROTAC Linker 15) is a PROTAC linker, which refers to the PEG composition. Boc-C1-PEG3-C4-OBn can be used in the synthesis of a series of PROTACs, such as PROTAC SGK3 degrader-1 (HY-125878). PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1].

• HY-126882

  Fmoc-PEG6-NHS ester
  Fmoc-PEG6-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-140803

  Azide-PEG12-alcohol
  Azide-PEG12-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Azide-PEG12-alcohol is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

• HY-130410

  Bis-PEG6-NHS ester
  Bis-PEG6-NHS ester is a PEG-based PROTAC linker can be used in the synthesis of PROTACs. Bis-PEG6-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].

• HY-130523

  Tos-PEG5-Boc
  Tos-PEG5-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

• HY-41922

  Propargyl-PEG2-CH2COOH
  Propargyl-PEG2-CH2COOH is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG2-CH2COOH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

• HY-141009

  N-(Mal-PEG6)-N-bis(PEG7-TCO)
  N-(Mal-PEG6)-N-bis(PEG7-TCO) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. N-(Mal-PEG6)-N-bis(PEG7-TCO) is a click chemistry reagent, it contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing Tetrazine groups.