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-N2420
    Flavokawain A
    Inhibitor 99.93%
    Flavokawain A is a chalcone compound and an orally active inhibitor of PRMT5 and cytochrome P450. Flavokawain A has anti-inflammatory, anti-tumor, and immunomodulatory effects. Flavokawain A can inhibit the proliferation of tumor cells and induce apoptosis. Flavokawain A can be used in the research of diseases such as bladder cancer.
    Flavokawain A
  • HY-N0924
    (±)-Stylopine
    Inhibitor 99.86%
    (±)-Stylopine (Tetrahydrocoptisine) is an alkaloid compound. (±)-Stylopine can be isolated from the tubers of the plant Corydalis. (±)-Stylopine inhibits TNF-α, IL-6, and NO production, and attenuates phosphorylation of p38 MAPK, ERK1/2. (±)-Stylopine inhibits NF-κB expression. (±)-Stylopine exhibits anti-inflammatory activity. (±)-Stylopine has protective effects against foot edema, gastric ulcers, anxiety, depression, and acute lung injury.
    (±)-Stylopine
  • HY-N2488
    Demethylsuberosin
    Inhibitor 99.71%
    Demethylsuberosin (7-Demethylsuberosin) is a coumarin compound found in Angelica gigas Nakai. Demethylsuberosin exerts antihypertensive effects by inhibiting the L-type CaV1.2 channel. Demethylsuberosin has antioxidant and anti-inflammatory activities. Demethylsuberosin also exhibits neuroprotective activities against glutamate-induced toxicity in primary cultured rat cortical cells.
    Demethylsuberosin
  • HY-W016412
    Coenzyme Q0
    Inhibitor 99.79%
    Coenzyme Q0 (CoQ0) is a potent, oral active ubiquinone compound can be derived from Antrodia cinnamomea. Coenzyme Q0 induces apoptosis and autophagy, suppresses of HER-2/AKT/mTOR signaling to potentiate the apoptosis and autophagy mechanisms. Coenzyme Q0 regulates NFκB/AP-1 activation and enhances Nrf2 stabilization in attenuation of inflammation and redox imbalance. Coenzyme Q0 has anti-angiogenic activity through downregulation of MMP-9/NF-κB and upregulation of HO-1 signaling.
    Coenzyme Q0
  • HY-Y0078
    Cinnamyl Alcohol
    Inhibitor 99.80%
    Cinnamyl Alcohol is an active component from chestnut flower, inhibits increased PPARγ expression, exhibits anti-obesity, antioxidant and anti-inflammatory activities.
    Cinnamyl Alcohol
  • HY-B1092
    Gluconate Calcium
    Inhibitor 98.0%
    Gluconate (D-Gluconic acid) Calcium is an orally active glucose derivative. Gluconate Calcium reduces nitric oxide and inflammatory cytokines (IL-1β and IL-6). Gluconate Calcium inhibits ERK phosphorylation. Gluconate Calcium has antioxidant and antiplatelet activation activities. Gluconate Calcium has antitumor activity against colorectal cancer. Gluconate Calcium improves osteoarthritis, intestinal damage and acute lung injury.
    Gluconate Calcium
  • HY-B2209B
    Hydroxocobalamin acetate
    98.0%
    Hydroxocobalamin acetate is an injectable natural vitamin B12. Hydroxocobalamin acetate binds to NO. Hydroxocobalamin acetate detoxifies Cyanide and NaSH. Hydroxocobalamin acetate reduces hypotension. Hydroxocobalamin acetate is used in research related to vitamin B12 deficiency, including pernicious anemia.
    Hydroxocobalamin acetate
  • HY-B1197
    Amcinonide
    Inhibitor 99.11%
    Amcinonide is an inhibitor of NO release (IC50 = 3.38 nM). Amcinonide inhibits NNC-induced expression of the proinflammatory genes iNOS, TNF-α, and IL-1β in glial cells. Amcinonide reduces the numbers of T6+/Ia+ cells with a concomitant increase in T6+/Ia- cells. Amcinonide induces a selective reduction in expression of Ia antigens. Amcinonide can also be studied in research for eczematous dermatitis.
    Amcinonide
  • HY-N0911
    Rehmannioside A
    Inhibitor 99.96%
    Rehmannioside A is a compound that can be isolated from Rehmanniae radix. Rehmannioside A is an inhibitor of CYP3A4, 2C9 and 2D6, with IC50 values of 10.08, 12.62 and 16.43 μM, respectively. Rehmannioside A has anti-inflammatory, antioxidant, anti-apoptosis, anti-ferroptosis, cognitive improvement and neuroprotective activities. Rehmannioside A can be used for the research of nervous system and inflammation-related diseases.
    Rehmannioside A
  • HY-N0698
    Crocin II
    Inhibitor 99.04%
    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
  • HY-P10586A
    Macrophage-activating lipopeptide 2 TFA
    Inducer 98.60%
    Macrophage-activating lipopeptide 2 TFA is an agonist of Toll like receptors TLR-2/TLR-6. Macrophage-activating lipopeptide-2 enhances endothelial nitric oxide synthase (eNOS) phosphorylation and endothelial cell release of NO, thereby improving vasodilation. Macrophage-activating lipopeptide-2 enhances endothelial adhesion of white blood cells and improve perfusion recovery and collateral growth in the hind limbs of hypercholesterolemic Apoe deficient mice undergoing experimental femoral artery ligation (FAL).
    Macrophage-activating lipopeptide 2 TFA
  • HY-136341
    7,8-Dihydroneopterin
    Activator 99.79%
    7,8-Dihydroneopterin, an inflammation marker, induces cellular apoptosis in astrocytes and neurons via enhancement of nitric oxide synthase (iNOS) expression. 7,8-Dihydroneopterin can be used in the research of neurodegenerative diseases.
    7,8-Dihydroneopterin
  • HY-N5112B
    β,β-Dimethylacrylshikonin
    MDM2 Inhibitor 99.30%
    β,β-Dimethylacrylshikonin (Isoarnebin I) is a naphthoquinone derivative that can be isolated from Lithospermum erythrorhizon Sieb. et Zucc. β,β-Dimethylacrylshikonin promotes angiogenesis by inducing eNOS, VEGF and HIF-1α expression through the PI3K-dependent pathway. β,β-Dimethylacrylshikonin inhibits Notch-1 activation. β,β-Dimethylacrylshikonin inhibtis tumor cell proliferation, induces tumor cell apoptosis, and inhibits tumor growth.
    β,β-Dimethylacrylshikonin
  • HY-N6866
    Gomisin N
    Inhibitor 99.94%
    Gomisin N is an orally active lignan compound. Gomisin N can be isolated from Schisandra chinensis. Gomisin N induces Apoptosis in a variety of cells. Gomisin N activates AMPK, Akt, MAPK/ERK, Nrf2, caspase-3 and PARP-1. Gomisin N inhibits GSK3β, nitric oxide (NO), and proinflammatory cytokines (IL-1β, IL-6, TNF-α). Gomisin N has anti-inflammatory, antioxidant, anti-obesity, anti-diabetic, and anti-melanogenesis activities. Gomisin N has anti-tumor activity against cervical cancer and liver cancer. Gomisin N improves Alzheimer's disease.
    Gomisin N
  • HY-N5064
    Bacoside A3
    Inhibitor 99.85%
    Bacoside A3 is a triterpenoid saponin isolated from Bacopa monnieri. Bacoside A3 has neuroprotective activity, downregulating β-amyloid-induced inflammatory responses and inhibiting neuronal apoptosis. Bacoside A3 can be used in the study of Alzheimer's disease.
    Bacoside A3
  • HY-146066
    α7 nAchR-JAK2-STAT3 agonist 1
    Inhibitor 99.54%
    α7 nAchR-JAK2-STAT3 agonist 1 is a potent α7 nAchR-JAK2-STAT3 agonist, with an IC50 value of 0.32 μM for nitric oxide (NO). α7 nAchR-JAK2-STAT3 agonist 1 effectively suppresses the expression of iNOS, IL-1β, and IL-6 in murine RAW264.7 macrophages. α7 nAchR-JAK2-STAT3 agonist 1 can inhibit LPS-induced NO release, NF-κB activation and cytokine production. α7 nAchR-JAK2-STAT3 can be used for researching sepsis.
    α7 nAchR-JAK2-STAT3 agonist 1
  • HY-128578
    KPLH1130
    Inhibitor 99.86%
    KPLH1130 is a pyruvate dehydrogenase kinase (PDK) inhibitor. KPLH1130 potently inhibits M1 macrophage polarization by reducing the expression of pro-inflammatory cytokines, decreasing the levels of M1 phenotype markers (HIF-1α, iNOS) and nitric oxide (NO) production. KPLH1130 prevents the reduction of mitochondrial oxygen consumption rate (OCR) induced by inflammatory stimuli (LPS ((HY-D1056) + IFN-γ) in various macrophage types. KPLH1130 improves glucose tolerance in HFD-fed mice. KPLH1130 can be used for the study of obesity-associated metabolic disorders and other inflammatory conditions.
    KPLH1130
  • HY-N0167
    Gynostemma Extract
    Inhibitor 99.92%
    Gynostemma Extract (Gypenoside IX) is a triterpenoid saponin. Gynostemma Extract can be isolated from Panax notoginseng. Gynostemma Extract reduces NFκB nuclear translocation and transcriptional activity by inhibiting the p38 MAPK/Akt/NFκB signaling pathway. Gynostemma Extract reduces the expression of cytokines (COX-2, IL-6) and the production of NO. Gynostemma Extract has anti-inflammatory activity. Gynostemma Extract can be used in the study of liver injury and neuroinflammation.
    Gynostemma Extract
  • HY-D0958
    Methylene blue hydrate
    Inhibitor
    Methylene blue (Basic Blue 9) hydrate 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 hydrate through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue hydrate is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue hydrate is a Tau aggregation inhibitor. Methylene blue hydrate reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation.
    Methylene blue hydrate
  • HY-B1478
    Dimaprit dihydrochloride
    Inhibitor 99.91%
    Dimaprit dihydrochloride is a selective histamine H2 receptor agonist, it also inhibits nNOS with an IC50 of 49 μM. Dimaprit dihydrochloride can stimulate gastric acid secretion.
    Dimaprit dihydrochloride
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