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-N0455AS9
    L-Arginine-15N4,d7 hydrochloride
    Activator
    L-Arginine-15N4,d7 (hydrochloride) is the deuterium and 15N-labeled L-Arginine hydrochloride. L-Arginine hydrochloride ((S)-(+)-Arginine hydrochloride) is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.
    L-Arginine-<sup>15</sup>N<sub>4</sub>,d<sub>7</sub> hydrochloride
  • HY-W003969R
    Aminopicoline (Standard)
    Inhibitor
    Aminopicoline (Standard) is the analytical standard of Aminopicoline. This product is intended for research and analytical applications. Aminopicoline (Ascensil) is a potent and nonselective inhibitor of NO synthase (NOS) isoenzymes (iNOS, nNOS, eNOS).
    Aminopicoline (Standard)
  • HY-107969R
    Haloperidol decanoate (Standard)
    Haloperidol decanoate (Standard) is the analytical standard of Haloperidol decanoate. This product is intended for research and analytical applications. Haloperidol decanoate is a depot preparation of haloperidol, a commonly used butyrophenone derivative with antipsychotic activity. Haloperidol decanoate can increase the striatal D2 receptor in rat. Haloperidol decanoate can improve conditions of psychoses (mainly schizophrenia). Haloperidol decanoate can lead to increased accumulation of the dopamine metabolites homo-vanillic acid. Haloperidol decanoate can reduce intestinal transport, increase gastric emptying and reduce acid output in rat model.
    Haloperidol decanoate (Standard)
  • HY-B1092R
    Gluconate Calcium (Standard)
    Inhibitor
    Gluconate Calcium (Standard) (Calcium D-gluconate (Standard)) is the analytical standard of Gluconate Calcium (HY-B1092). This product is intended for research and analytical applications. 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 (Standard)
  • HY-N0268R
    Irisflorentin (Standard)
    Inhibitor
    Irisflorentin (Standard) is the analytical standard of Irisflorentin. This product is intended for research and analytical applications. Irisflorentin, a naturally occurring isoflavone, is an abundant active constituent in Belamcanda chinensis. Irisflorentin markedly reduces the transcriptional and translational levels of inducible nitric oxide synthase (iNOS) as well as the production of NO. Anti-inflammatory activity.
    Irisflorentin (Standard)
  • HY-18732C
    L-NMMA hydrochloride
    Antagonist
    L-NMMA (Tilarginine) hydrochloride competitively antagonizes L-arginine, and thus inhibits production of nitric oxide (NO). L-NMMA hydrochloride is utilized as NO synthase antagonist in experimental settings.
    L-NMMA hydrochloride
  • HY-N1312R
    Sinapaldehyde (Standard)
    Inhibitor
    Sinapaldehyde is a methoxyphenol and a selective COX-2 inhibitor (IC50: 47.8 µM) that can be extracted from various plants. Sinapaldehyde has antibacterial, anti-inflammatory, and antioxidant activities. Sinapaldehyde can scavenge DPPH free radicals (IC50: 172 μM). Sinapaldehyde is active against both Gram-negative and Gram-positive bacteria.
    Sinapaldehyde (Standard)
  • HY-Y0078R
    Cinnamyl Alcohol (Standard)
    Inhibitor
    Cinnamyl Alcohol (Standard) is the analytical standard of Cinnamyl Alcohole (HY-Y0078). This product is intended for research and analytical applications. Cinnamyl Alcohol is an active component from chestnut flower, inhibits increased PPARγ expression, exhibits anti-obesity, antioxidant and anti-inflammatory activities.
    Cinnamyl Alcohol (Standard)
  • HY-131898R
    PTIO (Standard)
    Inhibitor
    PTIO (Standard) is the analytical standard of PTIO. This product is intended for research and analytical applications. PTIO is a specific scavenger of NO and redox mediator. PTIO reacts with •NO to form the corresponding imino nitroxides and •NO2. PTIO enhances organic contaminants oxidation by permanganate.
    PTIO (Standard)
  • HY-18731R
    1400W Dihydrochloride (Standard)
    Inhibitor
    1400W (Dihydrochloride) (Standard) is the analytical standard of 1400W (Dihydrochloride). This product is intended for research and analytical applications. 1400W dihydrochloride is the dihydrochloride form of 1400W (HY-18730). 1400W is a slow, tight binding, and highly selective inducible nitric-oxide synthase (iNOS) inhibitor, with a Kd value ≤ 7 nM. 1400W inhibits iNOS induction in microglial cells, and reduces generation of NO, thereby mitigating oxidative stress and neuronal cell apoptosis in the rat cerebral cortex, and improving the spatial memory dysfunction caused by acute hypobaric hypoxia-reoxygenation.
    1400W Dihydrochloride (Standard)
  • HY-W408607
    N-Benzylacetamidine hydrobromide
    Inhibitor
    N-Benzylacetamidine (hydrobromide) is a acetamidine compound. N-Benzylacetamidine (hydrobromide) is a selective inducible nitric oxide synthase (iNOS) inhibitor with an IC50 of 0.20 μM.
    N-Benzylacetamidine hydrobromide
  • HY-N15347
    Talaromyketide B
    Inhibitor
    Talaromyketide B is a polyketide compound with anti-inflammatory activity, discovered in the soil bacterium Talaromyces sp. KYS-41. Talaromyketide B inhibits the activation of the NF-κB and MAPK signaling pathways and dose-dependently suppresses pro-inflammatory cytokines, such as IL-1β, IL-6, IL-10, and TNF-α, as well as the transcriptional activity of inflammatory mediators, including iNOS and COX-2. Talaromyketide B holds potential for research in the fields of immunity and inflammatory diseases.
    Talaromyketide B
  • HY-12383R
    Pelubiprofen (Standard)
    Inhibitor
    Pelubiprofen (Standard) is the analytical standard of Pelubiprofen. This product is intended for research and analytical applications. Pelubiprofen is an orally active anti-inflammatory agent that inhibits COX enzyme activity (with IC50 values of 10.66 and 2.88 μM for COX-1 and COX-2, respectively). Pelubiprofen has significant anti-inflammatory and analgesic effects.
    Pelubiprofen (Standard)
  • HY-N2715A
    (2R)-6-Methoxynaringenin
    Inhibitor
    (2R)-6-Methoxynaringenin is the R isomer of 6-Methoxynaringenin (HY-N2715). 6-Methoxynaringenin is a flavonoid, that inhibits NO production with an IC50 of 25.8 μM.
    (2R)-6-Methoxynaringenin
  • HY-108054
    Cindunistat
    Inhibitor
    Cindunistat (SD-6010) is a potent, orally active and selective iNOS inhibitor.
    Cindunistat
  • HY-18252S2
    Avanafil-d4
    Inhibitor
    Avanafil-d4 (TA1790-d4) is deuterium-labeled Avanafil (HY-18252).
    Avanafil-d<sub>4</sub>
  • HY-121174
    Alaternin
    Inhibitor
    Alaternin (Catharticin) is an anthraquinone compound with antioxidant and hepatoprotective activities. Alaternin has an inhibitory activity against hydroxyl radicals generated in a cell-free chemical system (FeSO4/H2O2) with an IC50 value of 3.05 μM. Alaternin exhibits hepatoprotective activity against Tacrine (HY-111338)-induced toxicity in human hepatic HepG2 cells with an EC50 value of 4.02 μM.
    Alaternin
  • HY-N1695
    Demethylregelin
    Inhibitor
    Demethylregelin (Regelin acid), a triterpene, effectively reduces the expression of iNOS protein and subsequent nitric oxide production induced by lipopolysaccharide (HY-D1056) in RAW264.7 cells. Demethylregelin has anti-inflammatory activities.
    Demethylregelin
  • HY-115410
    NG-Amino-L-arginine hydrochloride
    Inhibitor
    NG-Amino-L-arginine hydrochloride induces inactivation of the citrulline-forming activity of the nNOS, iNOS, and eNOS isoforms with Ki values of 0.3 μM, 3 μM, and 2.5 μM, respectively.
    NG-Amino-L-arginine hydrochloride
  • HY-N3211
    N-cis-Feruloyl tyramine
    Inhibitor
    N-cis-Feruloyl tyramine (cis-N-(4-Hydroxyphenethyl) ferulamide) is a natural phenolic compound, exhibits modest inhibitory activity on LPS-activated NO production in RAW 264.7 cells.
    N-cis-Feruloyl tyramine
Cat. No. Product Name / Synonyms Application Reactivity

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