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-101251R
    AMT hydrochloride (Standard)
    Inhibitor
    AMT (hydrochloride) (Standard) is the analytical standard of AMT (hydrochloride). This product is intended for research and analytical applications. AMT hydrochloride is a selective inhibitor of inducible NOS (iNOS) with Ki of 4.2 nM.
    AMT hydrochloride (Standard)
  • HY-N0721R
    Neoandrographolide (Standard)
    Modulator
    Neoandrographolide (Standard) is the analytical standard of Neoandrographolide. This product is intended for research and analytical applications. Neoandrographolide is a diterpenoid compound isolated from Andrographis paniculata. Neoandrographolide inhibits osteoclasts differentiation and bone resorption through inhibition of MAPK/NF-κB/PI3K/AKT/GSK3β/PPAR/CAMK signaling pathway. Neoandrographolide inhibits apoptosis in rat embryonic ventricular cardiomyocytes. Neoandrographolide inhibits iNOS and the generation of ROS, activates eNOS, exhibiting anti-inflammatory and hypolipidemic activity.
    Neoandrographolide (Standard)
  • HY-N0396R
    Harpagoside (Standard)
    Inhibitor
    Harpagoside (Standard) is the analytical standard of Harpagoside. This product is intended for research and analytical applications. Harpagoside can be obtained by Harpagophytum procumbens, which has anti-inflammatory, anti-cancer, protective activity, and efficacy. Harpagoside has an inhibitory effect on COX-1 and COX-2 active, and suppresses NO production. Harpagoside inhibits HepG2 cell lipid polysaccharide, which is a protein that is expressed horizontally and selectively, and has anti-inflammatory and latent pain effects. Harpagoside has the ability to protect the body, and has a degenerative effect on the β-oxidation (Aβ).
    Harpagoside (Standard)
  • HY-100807S1
    Quinolinic acid-13C7
    Activator
    Quinolinic acid-13C7 is the 13C labeled Quinolinic acid (HY-100807). Quinolinic acid, an endogenous metabolite of tryptophan, is a N-methyl-D-aspartate receptor (NMDA receptor) agonist. Quinolinic acid increases glutamate efflux, induces the generation of ROS, activates nitric oxide synthase, produces excessive NO, leading to calcium ion influx and neuronal apoptosis.
    Quinolinic acid-<sup>13</sup>C<sub>7</sub>
  • HY-N1117
    Tristin
    Inhibitor 99.26%
    Tristin is a PTP1B inhibitor (IC50=21.2 μM) with antioxidant and antifungal activities. Tristin inhibits lipid peroxidation and NO production in LPS-stimulated macrophages, and also exhibits activity against a variety of phytopathogenic fungi. Tristin is also able to inhibit cancer cell proliferation. Tristin can be used in the research of diseases associated with phytopathogenic fungal infection, leukemia, type 2 diabetes and inflammatory responses.
    Tristin
  • HY-18732AR
    L-NMMA acetate (Standard)
    Inhibitor
    L-NMMA (Tilarginine) acetate (Standard) is the analytical standard of L-NMMA acetate (HY-18732A). This product is intended for research and analytical applications. L-NMMA (Tilarginine) acetate is a non-selective and competitive inhibitor of nitric oxide synthase. L-NMMA acetate inhibits three subtypes, namely nNOS, eNOS, and iNOS, and reduces NO production. L-NMMA acetate alleviates mechanical allodynia, thermal hyperalgesia, and choroidal fibrosis. L-NMMA acetate is applicable to research related to nociception, bone cancer pain, and myopia.
    L-NMMA acetate (Standard)
  • HY-W011849R
    Phenyl β-D-glucopyranoside (Standard)
    Inhibitor
    Phenyl β-D-glucopyranoside (Standard) is the analytical standard of Phenyl β-D-glucopyranoside (HY-W011849). This product is intended for research and analytical applications. Phenyl β-D-glucopyranoside is a component isolated from Phellodendron amurense, which has anti-inflammatory and anti-tumor activities. Phenyl β-D-glucopyranoside inhibits nitric oxide (NO) production, and the expression of iNOS and COX-2. Phenyl β-D-glucopyranoside also inhibits the nuclear translocation of NF-κB. Phenyl β-D-glucopyranoside inhibits the expression of pro-inflammatory cytokines and related genes.
    Phenyl β-D-glucopyranoside (Standard)
  • HY-P990252
    Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2)
    Inhibitor
    Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2) is an anti-mouse Delta-like protein 4/DLL4 IgG monoclonal antibody. Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2) can reduce angiogenesis and density by blocking the DLL4-Notch signaling pathway. Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2) reduces inflammatory response by decreasing NF-κB activity and pro-inflammatory factors (IL-1β, iNOS, IL-6) levels. Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2) can inhibit Th17 cell differentiation and IL-17A production. Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2) can reduce macrophage infiltration and alleviate insulin resistance. Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2) can be used for researches on inflammation, metabolic conditions and cancer such as atherosclerosis, pancreatic cancer and asthma.
    Anti-Mouse Delta-like protein 4/DLL4 Antibody (HMD4-2)
  • HY-W005963R
    Methyl 5-hydroxypyridine-2-carboxylate (Standard)
    Inhibitor
    Methyl 5-hydroxypyridine-2-carboxylate (Standard) is the analytical standard of Methyl 5-hydroxypyridine-2-carboxylate (HY-W005963). This product is intended for research and analytical applications. Methyl 5-hydroxypyridine-2-carboxylate is a phenolic acid that can found in the stems of Mahonia fortune. Methyl 5-hydroxypyridine-2-carboxylate exhibits NO inhibitory effects in vitro.
    Methyl 5-hydroxypyridine-2-carboxylate (Standard)
  • HY-B0679S
    Lubiprostone-d7
    Inhibitor
    Lubiprostone-d7 (RU-0211-d7) is the deuterium labeled Lubiprostone. Lubiprostone (SPI-0211) increases intestinal fluid secretion through generation of CIC-2/CFTR and activation of cAMP signaling pathway. Lubiprostone inhibits myeloperoxidase (MPO) activity, downregulates Indomethacin (HY-14397)-induced iNOS and TNFα expression. Lubiprostone can be used for chronic constipation research.
    Lubiprostone-d<sub>7</sub>
  • HY-172755
    NO-Rosa5 chloride
    NO-Rosa5 (chloride) is a photocontrollable NO donor. NO-Rosa5 (chloride) is made up of the fluorescent dye rosamie that functions as the light-harvesting group.
    NO-Rosa5 chloride
  • HY-107720R
    ARL 17477 (Standard)
    Inhibitor
    ARL 17477 (Standard) is the analytical standard of ARL 17477 (HY-107720). This product is intended for research and analytical applications. ARL-17477 is a dual inhibitor of NOS1and the autophagy-lysosomal system with anticancer activity and can inhibit tumor growth in KRAS-mutated cancers.
    ARL 17477 (Standard)
  • HY-17007S2
    Saquinavir-13C6
    Inhibitor
    Saquinavir-13C6 (Ro 31-8959-13C6) is 13C 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-<sup>13</sup>C<sub>6</sub>
  • HY-N8012
    Multinoside A
    Inhibitor
    Multinoside A (compound 6) is an antioxidant with DPPH free radical scavenging activity (IC50=54.3 μg/mL). Multinoside A can also downregulate COX-2 expression (IC50=9.6 μg/mL) and inhibit NO production (IC50=43.9 μg/mL).
    Multinoside A
  • HY-149671
    Anti-inflammatory agent 63
    Inhibitor
    Anti-inflammatory agent 63 is an anti-inflammatory agent that shows optimal inhibitory activity (EC50 = 5.33±0.57 μM) against the production of nitric oxide (NO) induced by lipopolysaccharide (LPS) in RAW264.7 cells.
    Anti-inflammatory agent 63
  • HY-107744R
    Nalmefene (Standard)
    Inhibitor
    Nalmefene (Standard) is the analytical standard of Nalmefene. This product is intended for research and analytical applications. Nalmefene is a long acting opioid (MOR and DOR antagonist), and a partial KOR agonist. Nalmefene is used for opioid overdose and alcohol dependence.
    Nalmefene (Standard)
  • HY-N15334
    Tricrozarin A
    Inhibitor
    Tricrozarin A is a Naphthazarin (HY-N7526) derivative, which is found in fresh bulbs of Tritonia crocosmaeflora. Tricrozarin A exhibits antimicrobial activity against gram-positive bacteria, fungi, and yeast.
    Tricrozarin A
  • HY-183342
    DHEA Benzophenone-biotin
    DHEA Benzophenone-biotin is a photoactive DHEA (HY-14650) analog containing Biotin (HY-B0511) and Benzophenone (HY-Y0546) groups. DHEA Benzophenone-biotin inhibits plasma membrane binding of DHEA, activates endothelial NO synthase. DHEA Benzophenone-biotin cross-links to plasma membrane DHEA binding sites upon UV irradiation to identify associated proteins.
    DHEA Benzophenone-biotin
  • HY-N2237R
    Piceatannol 3'-O-glucoside (Standard)
    Activator
    Piceatannol 3'-O-glucoside (Standard) is the analytical standard of Piceatannol 3'-O-glucoside. This product is intended for research and analytical applications. Piceatannol 3'-O-glucoside, an active component of Rhubarb, activates endothelial nitric oxide (NO) synthase through inhibition of arginase activity with IC50s of 11.22 μM and 11.06 μM against arginase I and arginase II, respectively.
    Piceatannol 3'-O-glucoside (Standard)
  • HY-N1330
    Rubranol
    Inhibitor
    Rubranol is an inhibitor of NO Synthase. Rubranol inhibits LPS-induced NO production in activated macrophages with 74% inhibition.
    Rubranol
Cat. No. Product Name / Synonyms Application Reactivity

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