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-17007S
    Saquinavir-d9
    		Inhibitor
    Saquinavir-d9 (Ro 31-8959-d9) is the deuterium labeled Saquinavir (HY-17007). Saquinavir (Ro 31-8959) is an orally active HIV protease inhibitor that can be used in the research of AIDS. Saquinavir also has anti-inflammatory activity and can induce apoptosis of human red blood cells.
    Saquinavir-d<sub>9</sub>
  • HY-B2162H
    Chondroitin polysulfate sulfate (from fish)
    Chondroitin polysulfate sulfate (from fish), one of five classes of glycosaminoglycans, has been widely used in the treatment of osteoarthritis. Chondroitin polysulfate sulfate (from fish) reduces inflammation mediators and the apoptotic process and is able to reduce protein production of inflammatory cytokines, iNOS and MMPs.
    Chondroitin polysulfate sulfate (from fish)
  • HY-N12817
    Anti-inflammatory agent 80
    		Inhibitor
    Anti-inflammatory agent 80 (Compound 2/2f) is an anti-inflammatory agent and has anti-tumor activity. Anti-inflammatory agent 80 can be isolated fromCynanchum limprichtiiSchltr.
    Anti-inflammatory agent 80
  • HY-129876
    D-NAME hydrochloride
    		Inhibitor
    D-NAME (D-NG-nitroarginine methyl ester) hydrochloride is a potent nitric oxide synthase (NOS) inhibitor. D-NAME hydrochloride inhibits the activity of NOS, reducing the production of nitric oxide.
    D-NAME hydrochloride
  • HY-122584
    iNOs-IN-7
    		Inhibitor
    iNOs-IN-7 is an inducible nitric oxide synthase (NOS) inhibitor.
    iNOs-IN-7
  • HY-W010270A
    Aurothiomalate disodium
    		Inhibitor
    Aurothiomalate (disodium) is a TRPA1 inhibitor. Aurothiomalate (disodium) inhibits NF-κB activation and iNOS expression. Aurothiomalate (disodium) promotes M2 transformation of macrophages and increases the expression of TREM-2 and arginase-1. Aurothiomalate (disodium) can be used in the study of liver fibrosis/cirrhosis and arthritis.
    Aurothiomalate disodium
  • HY-168935
    Anti-inflammatory agent 95
    		Inhibitor
    Anti-inflammatory agent 95 (Compound 2e) is an anti-inflammatory agent that exhibits the most potent anti-inflammatory activity in LPS (HY-D1056)-induced RAW 264.7 mouse macrophages. It significantly inhibits the production of NO, with an IC50 of 8.8 μM, and reduces the secretion of TNF-α and IL-1β, with inhibition rates reaching 60% and over 90%, respectively, at a concentration of 100 μM. Anti-inflammatory agent 95 holds promise for research in the field of inflammatory diseases.
    Anti-inflammatory agent 95
  • HY-N10156
    1,3,5-Trihydroxy-4-prenylxanthone
    		Inhibitor
    1,3,5-Trihydroxy-4-prenylxanthone is a Na+/H+ exchange system inhibitor with a minimum inhibitory concentration of 10 μg/mL. 1,3,5-Trihydroxy-4-prenylxanthone is a phosphodiesterase type 5 (PDE5) inhibitor with an IC50 value of 3.0 μM. 1,3,5-Trihydroxy-4-prenylxanthone inhibits Lipopolysaccharide (LPS) (HY-D1056)-induced NO production in RAW264.7 macrophages, and has anti-inflammatory activities.
    1,3,5-Trihydroxy-4-prenylxanthone
  • HY-112575
    Tiazotic acid
    		Modulator
    Tiazotic acid is a metabolic agent that has immunomodulatory, anti-inflammatory, antioxidant, anti-ischemic, cardio- and endothelioprotective, antiplatelet, hepatoprotective activities. Tiazotic acid increases the levels of eNOS. Tiazotic acid also reduces the level of D-dimer in the blood, which reduces the risks of heart attacks and strokes in post-COVID syndrome.
    Tiazotic acid
  • HY-N8812
    19-[(β-D-Glucopyranosyl)oxy]-19-oxo-ent-labda-8(17),13-dien-16,15-olide
    		Inhibitor
    19-[(β-D-Glucopyranosyl)oxy]-19-oxo-ent-labda-8(17),13-dien-16,15-olide, the metabolite of Neoandrographolide, inhibits nitric oxide (NO) production in lipopolysaccharide-activated macrophages.
    19-[(β-D-Glucopyranosyl)oxy]-19-oxo-ent-labda-8(17),13-dien-16,15-olide
  • HY-W754114
    Nalmefene Sulfate-d3
    Nalmefene Sulfate-d3 is the deuterium labeled Nalmefene (HY-107744). Nalmefene is a BBB-penetrable opioid receptor modulator. Nalmefene is an antagonist of MOR and DOR, and a partial agonist of KOR. Nalmefene has anti-inflammatory and neuroprotective activities. Nalmefene can be used in the research of reducing alcohol-dependent disorders.
    Nalmefene Sulfate-d<sub>3</sub>
  • HY-P0184A
    Camstatin TFA
    		Inhibitor
    Camstatin TFA, a functionally active 25-residue fragment of PEP-19's IQ motif, binds calmodulin and inhibits neuronal nitric oxide (NO) synthase.
    Camstatin TFA
  • HY-N1531
    Randaiol
    		Inhibitor
    Randaiol is an antioxidant that can be isolated from the stem bark of Magnolia officinalis. Randaiol inhibits LPS-induced NO production and has anti-inflammatory and antioxidant activities.
    Randaiol
  • HY-N15744
    Anti-Heart Failure Agent 3
    		Inhibitor
    Anti-Heart Failure Agent 3 (Compound 2) is an anti-heart failure agent with anti-inflammatory activity found in processed Cornus officinalis. Anti-Heart Failure Agent 3 inhibits NO release in LPS-induced RAW264.7 cells. Anti-Heart Failure Agent 3 alleviates myocardial ischemia-reperfusion injury, reduces myocardial infarction size, and improves myocardial histopathological changes. Anti-Heart Failure Agent 3 is promising for research of heart failure.
    Anti-Heart Failure Agent 3
  • HY-N11544
    Inflexuside B
    		Inhibitor
    Inflexuside B, an abietane diterpenoid, can be isolated from the aerial parts of Isodon inflexus. Inflexuside B strongly inhibits lipopolysaccharide (LPS)-activated NO Synthase in RAW264.7 macrophages.
    Inflexuside B
  • HY-149339
    hnNOS-IN-2
    hnNOS-IN-2 (compound 17) is a human neuronal nitric oxide synthase (hnNOS) inhibitor with good metabolic stability. hnNOS-IN-2 can be used for research in neurodegenerative diseases.
    hnNOS-IN-2
  • HY-18729AR
    L-NAME hydrochloride (Standard)
    		Inhibitor
    L-NAME (hydrochloride) (Standard) is the analytical standard of L-NAME (hydrochloride). This product is intended for research and analytical applications. 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.
    L-NAME hydrochloride (Standard)
  • HY-N10023
    Physalin O
    		Inhibitor
    Physalin O is a physalin that can be isolated from Physalis angulata. Physalin O shows cytotoxicity to Hep G2 and MCF-7 cancer cells with IC50 values of 31.1 and 11.4 µM, respectively. Physalin O inhibits the production of nitric oxide (NO) and shows anti-inflammatory activities.
    Physalin O
  • HY-N2965
    Bryonolic acid
    		Inhibitor
    Bryonolic acid is an active triterpenoid compound with immunomodulatory, anti-inflammatory, antioxidant and anticancer activities.
    Bryonolic acid
  • HY-N0747R
    Oxypeucedanin (Standard)
    		Inhibitor
    Oxypeucedanin (Standard) is a furanocoumarin derivative found in Angelica dahurica. Oxypeucedanin (Standard) is an orally active PI3K/AKT/NF-κB, MAPK, and ROS inhibitor. Oxypeucedanin (Standard) induces cell cycle arrest and apoptosis. Oxypeucedanin (Standard) inhibits hKv1.5 channel currents (IC50: 76 nM). Oxypeucedanin (Standard) exhibits anticancer, anti-inflammatory, antioxidant and antiarrhythmic activities.
    Oxypeucedanin (Standard)
Cat. No. Product Name / Synonyms Application Reactivity
NO Synthase Isoform Comparison

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