1. Signaling Pathways
  2. Immunology/Inflammation
  3. NO Synthase

NO Synthase

Nitric oxide synthases; NOS

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-14536A
    Methylene blue (purity≥70%)
    Inhibitor
    Methylene blue (purity≥70%) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue (purity≥70%) is a vasopressor and is often used as a dye in several medical procedures. Methylene blue (purity≥70%) through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue (purity≥70%) is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue (purity≥70%) is a Tau aggregation inhibitor. Methylene blue reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation.
    Methylene blue (purity≥70%)
  • HY-N13175
    Panaxcerol B
    Inhibitor
    Panaxcerol B is a monogalactosyl monoacylglyceride, with an IC50 of 59.4 μM for NO production in LPS-stimulated RAW264.7 cells.
    Panaxcerol B
  • HY-W004843
    3-Amino-1,2,4-triazine
    Inhibitor ≥98.0%
    3-Amino-1,2,4-triazine is an inhibitor of NO synthase, and also inhibits nitrite secretion.
    3-Amino-1,2,4-triazine
  • HY-N8090
    (3β,7β,12β,20Z)-3,7,12-Trihydroxy-11,15,23-trioxo-lanost-8,20-dien-26-oic acid
    Inhibitor
    (3β,7β,12β,20Z)-3,7,12-Trihydroxy-11,15,23-trioxo-lanost-8,20-dien-26-oic acid, a lanostane triterpenoids, exhibits obvious NO inhibitory activity on n LPS-induced BV-2 microglia cells with an IC50 of 9.55 uM. (3β,7β,12β,20Z)-3,7,12-Trihydroxy-11,15,23-trioxo-lanost-8,20-dien-26-oic acid has anti-inflammatory activities.
    (3β,7β,12β,20Z)-3,7,12-Trihydroxy-11,15,23-trioxo-lanost-8,20-dien-26-oic acid
  • HY-N8761
    Kihadanin A
    Inhibitor
    Kihadanin A (compound 3) is a limonoid NOS3 inhibitor that can be isolated from the methanol extract of Dictamnus dasycarpus root bark. Kihadanin A is useful in the study of hyperuricemia (HUA)[3].
    Kihadanin A
  • HY-131929
    AE-ITU dihydrobromide
    Inhibitor ≥98.0%
    AE-ITU dihydrobromide is the dihydrobromide form of AE-ITU. AE-ITU dihydrobromide is a selective inhibitor for inducible NO synthase (iNOS), and attenuates the liver dysfunction caused by endotoxaemia in rats.
    AE-ITU dihydrobromide
  • HY-107584
    BYK 191023 dihydrochloride
    Inhibitor 99.63%
    BYK 191023 is a highly selective inducible nitric-oxide synthase (iNOS) inhibitor. BYK 191023 interacts with the catalytic center of the enzyme. BYK 191023 can be used to study the in vivo and in vitro effects mediated by iNOS .
    BYK 191023 dihydrochloride
  • HY-W923189
    Neral
    Inhibitor
    Neral is a monoterpene compound that has anti-inflammatory and anti-cancer properties. Neral can inhibit TNF-α and IL-6, and it also suppresses inflammatory mediators like pro-IL-1β, iNOS, COX-2, and NLRP-3.
    Neral
  • HY-101410R
    SDMA (Standard)
    Inhibitor
    SDMA (Standard) is the analytical standard of SDMA. This product is intended for research and analytical applications. SDMA (Symmetric dimethylarginine) is an endogenous inhibitor of nitric oxide (NO) synthase activity. SDMA, a novel kidney biomarker, permits earlier diagnosis of kidney disease than traditional creatinine testing.
    SDMA (Standard)
  • HY-N2908R
    Atraric acid (Standard)
    Inhibitor
    Atraric acid (Standard) is the analytical standard of Atraric acid. This product is intended for research and analytical applications. Atraric acid (Methyl atrarate) is a specific androgen receptor (AR) antagonist with anti-inflammatory and anticancer effects. Atraric acid represses the expression of the endogenous prostate specific antigen gene in both LNCaP and C4-2 cells. Atraric acid can also inhibit the synthesis of NO and cytokine, and suppress the MAPK-NFκB signaling pathway. Atraric acid can be used to research prostate diseases and inflammatory diseases[1][2].
    Atraric acid (Standard)
  • HY-141411A
    Zevaquenabant
    Antagonist
    Zevaquenabant ((S)-MRI-1867) is a peripherally restricted, orally bioavailable dual cannabinoid CB1 receptor and inducible NOS antagonist. Zevaquenabant ameliorates obesity-induced chronic kidney disease (CKD).
    Zevaquenabant
  • HY-133126
    hDDAH-1-IN-1
    Inhibitor
    hDDAH-1-IN-1 (compound 8a) is a potent and selective non-amino acid catalytic site inhibitor of human dimethylarginine dimethylaminohydrolase-1 (hDDAH-1), with a Ki of 18 μM. DDAH mediates ADMA metabolism, thereby regulating nitric oxide production in a variety of disease states.
    hDDAH-1-IN-1
  • HY-133145A
    hDDAH-1-IN-2 sulfate
    Inhibitor
    hDDAH-1-IN-2 is a selective, orally active human dimethylarginine dimethylaminohydrolase-1 (hDDAH-1) inhibitor. hDDAH-1-IN-2 reveals an excellent profile regarding cell toxicity/viability.
    hDDAH-1-IN-2 sulfate
  • HY-12118
    L-NIL dihydrochloride
    Inhibitor
    L-NIL dihydrochloride is an inducible NO synthase inhibitor, with an IC50 of 3.3 μM for miNOS.
    L-NIL dihydrochloride
  • HY-118700AR
    2-Iminobiotin (hydrobromide) (Standard)
    Inhibitor
    H-Gly-Gly-Gly-OH (Standard) is the analytical standard of H-Gly-Gly-Gly-OH. This product is intended for research and analytical applications. H-Gly-Gly-Gly-OH, also known as Triglycine, is a tripeptide composed of glycine, glycine and glycine, which are linked by peptide bonds. Often used as a model compound in the study of protein structure and function. Glycylglycylglycine also acts as a neurotransmitter in the central nervous system and has been shown to have antioxidant properties. Furthermore, it may have potential research roles in various diseases such as cancer, diabetes and neurodegenerative diseases.
    2-Iminobiotin (hydrobromide) (Standard)
  • HY-133126A
    hDDAH-1-IN-1 TFA
    Inhibitor
    hDDAH-1-IN-1 TFA (compound 8a) is a potent and selective non-amino acid catalytic site inhibitor of human dimethylarginine dimethylaminohydrolase-1 (hDDAH-1), with a Ki of 18 μM.
    hDDAH-1-IN-1 TFA
  • HY-172451
    MC4762
    Inhibitor
    MC4762 is an inhibitor of NOX2 and MAOB, with IC50 values of 0.155 μM and 0.182 μM, respectively. MC4762 has anti-inflammatory activity, can inhibit the production of ROS, and downregulate the expression of pro-inflammatory cytokines iNOS, IL-1β, and IL-6.
    MC4762
  • HY-N0698R
    Crocin II (Standard)
    Inhibitor
    Crocin II (Standard) is the analytical standard of Crocin II. This product is intended for research and analytical applications. Crocin II is isolated from the fruit of Gardenia jasminoides with antioxidant, anticancer, and antidepressant activity. Crocin II inhibits NO production with an IC50 value of 31.1 μM. Crocin II suppresses the expressions of protein and m-RNA of iNOS and COX-2.
    Crocin II (Standard)
  • HY-18252A
    Avanafil dibenzenesulfonate
    Inhibitor
    Avanafil (TA-1790) dibenzenesulfonate is a potent and selective phosphodiesterase-5 (PDE-5) inhibitor with IC50 values of 5.2 nM, 630 nM, 5700 nM, 6200 nM, 12000 nM, 27000 nM, 51000 nM and 53000 nM for PDE-5, PDE-6, PDE-4, PDE-10, PDE-8, PDE-7, PDE-2 and PDE-1, respectively. Avanafil dibenzenesulfonate activates NO/cGMP/PKG signaling-pathway to decrease loss in BMD, bone atrophy, and oxidative stress. Avanafil dibenzenesulfonate inhibits cyclic guanosine monophosphate (cGMP) hydrolysis and thus increases cGMP levels. Avanafil dibenzenesulfonate can be used for the research of erectile dysfunction and osteoporosis.
    Avanafil dibenzenesulfonate
  • HY-119873S
    Celiprolol-d9 hydrochloride
    Celiprolol-d9 (hydrochloride) is the deuterium labeled Celiprolol hydrochloride[1].
    Celiprolol-d<sub>9</sub> hydrochloride
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