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

NO Synthase

Nitric oxide synthases; NOS

NO Synthase

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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 Isoform Specific Products:

NO Synthase Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • 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-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-141411B
    (R)-Zevaquenabant
    		Antagonist 99.15%
    (R)-Zevaquenabant ((R)-MRI-1867) is the enantiomer of Zevaquenabant (HY-141411A). 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).
    (R)-Zevaquenabant
  • 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-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-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-B1041AS
    Aminoguanidine-13C, 15N4
    Aminoguanidine-13C,15N4 (Pimagedine-13C,15N4) is the 13C- and 15N-labeled Aminoguanidine (HY-B1041A). Aminoguanidine (Pimagedine hydrochloride) is an inhibitor of diamine oxidase and nitric oxide synthase. Aminoguanidine has a dose-dependent inhibitory effect on apoptosis induced by Doxorubicin (HY-15142). Aminoguanidine has antioxidant properties. Aminoguanidine can be used in diabetic nephropathy research.
    Aminoguanidine-13C, 15N4
  • HY-119873S
    Celiprolol-d9 hydrochloride
    Celiprolol-d9 (hydrochloride) is the deuterium labeled Celiprolol hydrochloride.
    Celiprolol-d<sub>9</sub> hydrochloride
  • 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.
    iNOS inhibitor-10
  • HY-176234
    PDE4-IN-28
    		Inhibitor
    PDE4-IN-28 (Compound G1) is a PDE4D inhibitor (IC50: 29 nM). PDE4-IN-28 inhibits the production of TNF-α and NO (IC50: 13.32 and 2.32 μM, respectively). PDE4-IN-28 exhibits anti-inflammatory, antibacterial and analgesic effects in a rat pressure ulcer (PU) model and promotes HUVEC cell migration, thereby accelerating wound healing.
    PDE4-IN-28
  • 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.
    Britannilactone diacetate
  • HY-W074890R
    Palmitoylglycine (Standard)
    		Modulator
    Palmitoylglycine (Standard) is the analytical standard of Palmitoylglycine. This product is intended for research and analytical applications. Palmitoylglycine (N-palmitoyl glycine), an endogenous lipid that acts as a modulator of calcium influx and nitric oxide () production in sensory neurons. Palmitoylglycine is linked to an increased risk of Background Brugada syndrome (BrS) and interacts with BrS-associated proteins, demonstrating moderate binding affinities for DCC, CR1, CTSB, NAAA, DEFB1, EPHA1, IGF1/IGFBP3/ALS, and LTA[1][2][3].
    Palmitoylglycine (Standard)
  • 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. Mifepristone-13C,d3 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Mifepristone-<sup>13</sup>C,d<sub>3</sub>
Cat. No. Product Name / Synonyms Application Reactivity
NO Synthase Isoform Comparison

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