2. Immunology/Inflammation
  3. NO Synthase

NO Synthase

Nitric oxide synthases (NOSs) are a family of enzymes catalyzing the production of nitric oxide (NO) from L-arginine. NO synthases catalyze the oxidation of L-arginine to NO and L-citrulline. Mammals contain three NOS isoforms: neuronal NOS (nNOS), inducible NOS (iNOS), and endothelial NOS (eNOS). NO produced from these different NOS isoforms is involved in a wide range of physiologic functions in the nervous, immune, and cardiovascular systems. Unregulated NO production can lead to pathologic conditions such as stroke, inflammation, and hypertension. Therefore, the control of NOS activity by isoform selective NOS inhibitors has great potential for therapeutic treatments of NO-related diseases.

NO Synthase Related Products (188):

Cat. No. Product Name Effect Purity
  • HY-10230
    Midostaurin Activator
    Midostaurin (PKC412; CGP 41251) is an orally active, reversible multi-targeted protein kinase inhibitor. Midostaurin inhibits PKCα/β/γ, Syk, Flk-1, Akt, PKA, c-Kit, c-Fgr, c-Src, FLT3, PDFRβ and VEGFR1/2 with IC50s ranging from 22-500 nM[1][2]. Midostaurin also upregulates endothelial nitric oxide synthase (eNOS) gene expression. Midostaurin shows powerful anticancer effects[3].
  • HY-18731
    1400W Dihydrochloride Inhibitor 99.65%
    1400W dihydrochloride is a potent and selective inhibitor of human inducible NO synthase with Ki values of 7 nM.
  • HY-18729A
    L-NAME hydrochloride Inhibitor
    L-NAME hydrochloride inhibits NOS with an IC50 of 70 μM. L-NAME is a precursor to NOS inhibitor L-NOARG which has an IC50 value of 1.4 μM.
  • HY-13683
    Mifepristone Inhibitor 99.77%
    Mifepristone (RU486) is a progesterone receptor (PR) and glucocorticoid receptor (GR) antagonist with IC50s of 0.2 nM and 2.6 nM in in vitro assay[1].
  • HY-N0455
    L-Arginine Activator
    L-Arginine ((S)-(+)-Arginine) is the substrate for the endothelial nitric oxide synthase (eNOS) to generate NO. L-Arginine is transported into vascular smooth muscle cells by the cationic amino acid transporter family of proteins where it is metabolized to nitric oxide (NO), polyamines, or L-proline[1][2].
  • HY-N11548
    Inflexuside A Inhibitor
    Inflexuside A, an abietane diterpenoid, can be isolated from the aerial parts of Isodon inflexus. Inflexuside B strongly inhibits lipopolysaccharide (LPS)-activated NO production (NO Synthase) in RAW264.7 macrophages[1].
  • HY-N0761AS
    trans-Isoferulic acid-d3
    trans-Isoferulic acid-d3 is the deuterium labeled trans-Isoferulic acid[1]. trans-Isoferulic acid (trans-3-Hydroxy-4-methoxycinnamic acid) is an aromatic acid isolated from the roots of Clematis florida var. plena. trans-Isoferulic acid exhibits anti-inflammatory activity[2].trans-isoferulic acid suppresses NO and PGE2 production through the induction of Nrf2-dependent heme oxygenase-1 (HO-1)[3].
  • HY-B1409S
    Isosorbide dinitrate-13C6
    Isosorbide dinitrate-13C6 is the 13C labeled Isosorbide dinitrate[1]. Isosorbide dinitrate (ISDN) is an NO donor that prevents LV remodeling and degradation of cardiac function following myocardial infarction (MI)[2].
  • HY-152536
    iNOS inhibitor-10 Inhibitor
    iNOS inhibitor-10 is an iNOS inhibitor (IC50: 65 nM). iNOS inhibitor-10 has antiproliferative effect against triple negative breast cancer cells[1].
  • HY-N4190
    Britannilactone diacetate Inhibitor
    Britannilactone diacetate (1,6-O,O-Diacetylbritannilactone; Compound 2) exhibits potential NO inhibition effect. Britannilactone diacetate exhibits activity against NO production induced by LPS in BV-2 microglial cells with the EC50 value of 6.3 μM. Britannilactone diacetate exhibits a favorable blood-brain barriers (BBB) penetration and absorption, distribution, metabolism, excretion, and toxicity (ADMET) property[1].
  • HY-13683S1
    Mifepristone-13C,d3 Inhibitor
    Mifepristone-13C,d3 is the 13C- and deuterium labeled Mifepristone. Mifepristone (RU486) is a progesterone receptor (PR) and glucocorticoid receptor (GR) antagonist with IC50s of 0.2 nM and 2.6 nM in in vitro assay[1].
  • HY-P0117
    Tat-NR2B9c Inhibitor
    Tat-NR2B9c (Tat-NR2Bct; NA-1) is a postsynaptic density-95 (PSD-95) inhibitor, with EC50 values of 6.7 nM and 670 nM for PSD-95d2 (PSD-95 PDZ domain 2) and PSD-95d1, respectively. Tat-NR2B9c disrupts the PSD-95/NMDAR interaction, inhibiting NR2A and NR2B binding to PSD-95 with IC50 values of 0.5 μM and 8 μM, respectively. Tat-NR2B9c also inhibits neuronal nitric oxide synthase (nNOS)/PSD-95 interaction, and possesses neuroprotective efficacy[1][2][5].
  • HY-13562
    Banoxantrone Activator
    Banoxantrone (AQ4N), as a prototype hypoxia selective cytotoxin, can be reduced to AQ4, a potent topoisomerase II inhibitor. Banoxantrone selectively kills hypoxic cells via an iNOS-dependent mechanism. Banoxantrone shows a potent cytotoxicity and hypoxia-selective effect enhanced by radiation[1][2].
  • HY-N3426
    Kazinol B Inhibitor
    Kazinol B, a prenylated flavan with a dimethyl pyrane ring, is an inhibitor of nitric oxide (NO) production. Kazinol B improves insulin sensitivity by enhancing glucose uptake via the insulin-Akt signaling pathway and AMPK activation. Kazinol B has the potential for diabetes mellitus research[1][2].
  • HY-N0875
    IKarisoside A Inhibitor 99.27%
    IKarisoside A (Icarisoside-A) is a natural flavonol glycoside and has anti-inflammatory properties.
  • HY-100977
    Dimethoxycurcumin Inhibitor 98.89%
    Dimethoxycurcumin is a derivative of curcumin that has anti-inflammatory and antioxidant activities[1][2].
  • HY-69019
    7-Nitroindazole Inhibitor 98.97%
    7-Nitroindazole is a selective nNOS inhibitor with antinociceptive and cardiovascular effects. 7-Nitroindazole is a useful tool to evaluate the biological roles of nitric oxide in the central nervous system[1][2].
  • HY-N6770
    Curvularin Inhibitor
    Curvularin, a fungal metabolite and a potent mycotoxin naturally isolated from Curvularia lunata, inhibits cytokine-induced nitric oxide synthase (iNOS), with an IC50 of 9.5 µM[1][2].
  • HY-N0223
    Epibetulinic acid Inhibitor
    Epibetulinic acid exhibits potent inhibitory effects on NO and prostaglandin E2 (PGE2) production in mouse macrophages (RAW 264.7) stimulated with bacterial endotoxin with IC50s of 0.7 and 0.6 μM, respectively. Anti-inflammatory activity[1].
  • HY-14536
    Methylene Blue Inhibitor
    Methylene blue (Basic Blue 9) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue is a vasopressor and is often used as a dye in several medical procedures. Methylene blue through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue is a Tau aggregation inhibitor. Methylene blue reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation[1][2][3].