1. Protein Tyrosine Kinase/RTK
  2. Btk


Bruton tyrosine kinase (Btk) is a member of the Tec family kinases with a well-characterized role in B-cell antigen receptor (BCR)-signaling and B-cell activation.

Btk plays a crucial role in B cell development and activation through the BCR signaling pathway and represents a new target for diseases characterized by inappropriate B cell activity. Btk is a kinase expressed exclusively in B cells and myeloid cells and has a well characterized, vital role in B cells highlighted by the human primary immune deficiency disease, X-linked agammaglobulinemia (XLA), which results from mutation in the Btk gene. Btk plays an essential role in the BCR signaling pathway. Antigen binding to the BCR results in B cell receptor oligomerization, Syk and Lyn kinase activation, followed by Btk kinase activation. Once activated, Btk forms a signaling complex with proteins such as BLNK, Lyn, and Syk and phosphorylates phospholipase C (PLC)γ2. This leads to downstream release of intracellular Ca2+ stores and propagation of the BCR signaling pathway through extracellular signal-regulated kinase and NF-κB signaling, ultimately resulting in transcriptional changes to foster B cell survival, proliferation, and/or differentiation.

Btk Related Products (126):

Cat. No. Product Name Effect Purity
  • HY-101474A
    Zanubrutinib Inhibitor 99.18%
    Zanubrutinib (BGB-3111) is a selective Bruton tyrosine kinase (Btk) inhibitor[1].
  • HY-19834
    Fenebrutinib Inhibitor 99.42%
    Fenebrutinib (GDC-0853) is a potent, selective, orally available, and noncovalent bruton's tyrosine kinase (Btk) inhibitor with Kis of 0.91 nM, 1.6, 1.3, 12.6, and 3.4 nM for WT Btk, and the C481S, C481R, T474I, T474M mutants. Fenebrutinib has the potential for rheumatoid arthritis and systemic lupus erythematosus research[1].
  • HY-17600
    Acalabrutinib Inhibitor
    Acalabrutinib (ACP-196) is an orally active, irreversible, and highly selective second-generation BTK inhibitor. Acalabrutinib binds covalently to Cys481 in the ATP-binding pocket of BTK. Acalabrutinib demonstrates potent on-target effects and efficacy in mouse models of chronic lymphocytic leukemia (CLL)[1][2].
  • HY-131328
    Pirtobrutinib Inhibitor 99.88%
    Pirtobrutinib (LOXO-305), a highly selective and non-covalent next generation BTK inhibitor, inhibits diverse BTK C481 substitution mutations. Pirtobrutinib causes regression of BTK-dependent lymphoma tumors in mouse xenograft models. Pirtobrutinib is also more than 300-fold selective for BTK versus 370 other kinases tested and shows no significant inhibition of non-kinase off-targets at 1 μM[1].
  • HY-10997
    Ibrutinib Inhibitor 99.93%
    Ibrutinib (PCI-32765) is a selective, irreversible Btk inhibitor with an IC50 of 0.5 nM[1].
  • HY-153321
    BTK-IN-24 Inhibitor
    BTK-IN-24 (compound 195) is a potent BTK inhibitor via a ubiquitin proteolytic pathway[1].
  • HY-153357
    NRX-0492 Degrader
    NRX-0492 is an orally active and potent degrader of BTK. NRX-0492 catalyzes ubiquitylation and proteasomal degradation of BTK with DC50≤0.2 nM and DC90≤0.5 nM, respectively. NRX-0492 inhibits B-cell receptor (BCR)-mediated signaling, transcriptional programs, and chemokine secretion. Moreover, NRX-0492 also links a noncovalent BTK-binding domain to Cereblon. Cereblon is an adaptor protein of the E3 ubiquitin ligase complex[1].
  • HY-149051
    BGB-8035 Inhibitor
    BGB-8035 is an orally active, highly selective bruton's tyrosine kinase (BTK) inhibitor with IC50s of 1.1 nM, 99 nM, 621 nM for BTK, TEC, EGFR, respectively. BGB-8035 has antitumor and anti-arthritis activity. BGB-8035 has the potential for B-cell malignancies and autoimmune diseases research[1].
  • HY-147584
    BTK-IN-14 Inhibitor
    BTK-IN-14 is a potent inhibitor of BTK. BTK plays an important role in signaling mediated by B cell antigen receptor (BCR) and Fcγreceptor (FcγR) in B cells and myeloid cells, respectively. BTK-IN-14 has the potential for the research of related diseases, especially autoimmune diseases, inflammatory diseases or cancer (extracted from patent WO2022057894A1, compound 1)[1].
  • HY-148832
    BTK-IN-20 Inhibitor
    BTK-IN-20 (compound 283) is a BTK tyrosine kinase inhibitor and a 1H-pyrazolo[3,4-d]pyrimidine derivative. BTK-IN-20 can be used for the research of cancer and inflammation[1].
  • HY-147581
    BTK-IN-11 Inhibitor
    BTK-IN-11 is a potent inhibitor of BTK. BTK plays an important role in signaling mediated by B cell antigen receptor (BCR) and Fcγreceptor (FcγR) in B cells and myeloid cells, respectively. BTK-IN-11 has the potential for the research of related diseases, especially autoimmune diseases, inflammatory diseases or cancer (extracted from patent WO2022063101A1, compound Z2)[1].
  • HY-139481
    TL-895 Inhibitor 99.76%
    TL-895 is a potent, orally active, ATP-competitive, and highly selective irreversible BTK inhibitor with an IC50 and a Ki of 1.5 nM and 11.9 nM, respectively[1]. TL-895 is used be for JAKi-relapsed/refractory myelofibrosis, acute myeloid leukemia, COVID-19 and cancer research[2][3][4].
  • HY-122828
    PROTAC BTK Degrader-2 Degrader
    PROTAC BTK Degrader-2 is a potent BTK PROTAC degrader. PROTAC BTK Degrader-2 effectively reduces BTK protein levels[1].
  • HY-143718
    JAK3/BTK-IN-3 Inhibitor
    JAK3/BTK-IN-3 is a potent inhibitor of JAK3/BTK. BTK and JAK3 are two important targets for autoimmune diseases. Simultaneous inhibition of the BTK/JAK3 signalling pathway exhibits synergistic effects. JAK3/BTK-IN-3 has the potential for the research of JAK3 kinase and/or BTK-related diseases (extracted from patent WO2021147952A1, compound 009)[1]
  • HY-153110A
    Larotinib mesylate hydrate Inhibitor 98.66%
    Larotinib mesylate hydrate is a potent broad-spectrum and orally active tyrosine kinase inhibitor (TKI) with EGFR as the main target with an IC50 of 0.6 nM[1].
  • HY-18009
    (Z)-LFM-A13 Inhibitor 99.97%
    LFM-A13 is a potent BTK, JAK2, PLK inhibitor, inhibits recombinant BTK, Plx1 and PLK3 with IC50s of 2.5 μM, 10 μM and 61 μM; LFM-A13 shows no effects on JAK1 and JAK3, Src family kinase HCK, EGFR and IRK.
  • HY-122562
    MT-802 Inhibitor 98.94%
    MT-802 is a potent BTK degrader based on Cereblon ligand, with a DC50 of 1 nM. MT-802 has potential to treat C481S mutant chronic lymphocytic leukemia (CLL)[1].
  • HY-148585
    BTK-IN-22 Inhibitor
    BTK-IN-22 is a BTK inhibitor (IC50: 0.9 nM). BTK-IN-22 also inhibits BLX and BMX with IC50s of 1.4 and 1.2 nM respectively. BTK-IN-22 shows improved kinase selectivity compared to Ibrutinib (HY-10997)[1]
  • HY-125997
    BTK inhibitor 10 Inhibitor 99.66%
    BTK inhibitor 10 is a potent and orally active Bruton kinase (BTK) inhibitor, extracted from patent WO2018145525, example 33. BTK inhibitor 10 has a potential for rheumatoid arthritis treatment[1].
  • HY-145373
    BMS-986143 Inhibitor
    BMS-986143 is an orally active, reversible BTK inhibitor with an IC50 of 0.26 nM. BMS-986143 also inhibits TEC, BLK, BMX, TXK FGR, YES1, ITK with IC50s of 3 nM, 5 nM, 7 nM, 10 nM, 15 nM,19 nM, 21 nM, respectively. BMS-986143 can be used for the research of autoimmune diseases[1].