2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Xanthine Oxidase

Xanthine Oxidase

XO

Xanthine Oxidase

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Xanthine oxidase (XO), a versatile molybdoflavoprotein, catalyzes the oxidative hydroxylation of purine substrates (hypoxanthine and xanthine) to produce uric acid and subsequent reduction of oxygen at the flavin center with the generation of reactive oxygen species, either superoxide anion radical or hydrogen peroxide.

Xanthine oxidase is an important enzyme of purine catabolism pathway and has been associated directly in pathogenesis of gout and indirectly in many pathological conditions like cancer, diabetes and metabolic syndrome. The selective inhibition of xanthine oxidase may result in a broad spectrum therapeutic use for gout, cancer, inflammation and oxidative damage.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N0778
    Isorhamnetin-3-O-neohespeidoside
    		Inhibitor 99.93%
    Isorhamnetin-3-O-neohespeidoside is a flavonoid. Isorhamnetin-3-O-neohespeidoside can be isolated from Typha angustifolia. Isorhamnetin-3-O-neohespeidoside inhibits xanthine oxidase activity with an IC50 of 48.75 μg mL. Isorhamnetin-3-O-neohespeidoside has antioxidant and osteoclastogenic activities. Isorhamnetin-3-O-neohespeidoside can be used in research of bone.
    Isorhamnetin-3-O-neohespeidoside
  • HY-W012658
    2-Methylacetophenone
    		Inhibitor 99.60%
    2-Methylacetophenone (O-Methylacetophenone), acetophenone derivative and acaricide, is a xanthine dehydrogenase (XDH) inhibitor. 2-Methylacetophenone competitively binds to the XDH active site, blocking the pathway for xanthine to be converted to uric acid. 2-Methylacetophenone can be used for the study of hyperuricemia and house dust.
    2-Methylacetophenone
  • HY-W011258
    H-Tyr-Phe-OH
    		Inhibitor 98.64%
    H-Tyr-Phe-OH (L-Tyrosyl-L-phenylalanine) is an orally active inhibitor of Angiotensin converting enzyme (ACE), with an inhibiton rate of 48% at 50 μM. H-Tyr-Phe-OH can be used as an biomarker for differentiating benign thyroid nodules (BTN) from thyroid cancer (TC). H-Tyr-Phe-OH exhibits xanthine oxidase inhibition (uric acid lowering) activity and serves as regulator in IL-8 production in neutrophil-like cells.
    H-Tyr-Phe-OH
  • HY-N0358
    1,4-Dicaffeoylquinic acid
    		Inhibitor 99.25%
    1,4-Dicaffeoylquinic acid (1,4-DCQA) is a phenylpropanoid compound that can be isolated from Xanthii fructus and an inhibitor of xanthine oxidase (IC50: 7.36 μM). 1,4-Dicaffeoylquinic acid has anti-inflammatory activity and can inhibit the production of TNF-α induced by LPS (HY-D1056).
    1,4-Dicaffeoylquinic acid
  • HY-N8600
    7,8,3′,4′-Tetrahydroxyflavone
    		Inhibitor 98.45%
    7,8,3′,4′-Tetrahydroxyflavone (compound 2) is a potent xanthine oxidase (XOD) inhibitor with an IC50 value of 10.488 µM.
    7,8,3′,4′-Tetrahydroxyflavone
  • HY-N0814A
    Phytic acid dodecasodium hydrate
    		Inhibitor
    Phytic acid (Inositol hexaphosphate) dodecasodium hydrate is a phosphorus storage compound of seeds and cereal grains. Phytic acid dodecasodium hydrate is known as a food inhibitor, which has a strong ability to chelate multivalent metal ions, specially zinc, calcium, iron and as with protein residue. Phytic acid dodecasodium hydrate inhibits the enzymatic superoxide source xanthine oxidase (XO), and has antioxidative, neuroprotective, anti-inflammatory effects.
    Phytic acid dodecasodium hydrate
  • HY-W008550
    8-Azaadenine
    		Inhibitor 99.85%
    8-Azaadenine is an inhibitor of Xanthine Oxidase with an IC50 of 0.54 μM and a Ki of 0.66 μM. 8-Azaadenine can be produced via the metabolism of 8-Azaadenosine (HY-115686) and incorporated into polynucleotide chains together with 8-Azaguanine (HY-B1468) to affect purine metabolism. 8-Azaadenine can be used in the study of cancer.
    8-Azaadenine
  • HY-139585
    Tigulixostat
    		Inhibitor 99.18%
    Tigulixostat (LC350189) is an orally active non-purine selective xanthine oxidase inhibitor. Tigulixostat has IC50 values of 0.003 µM and 0.073 µM in bovine milk and rat plasma, respectively. Tigulixostat can effectively reduce serum uric acid levels and can be used in the research of gout and hyperuricemia.
    Tigulixostat
  • HY-W037417
    DAO-IN-1
    		Inhibitor
    DAO-IN-1 is a potent inhibitor of D-amino acid oxidase (DAO) with an IC50 value of 269 nM. DAO is an enzyme responsible for D-serine metabolism, D-serine is a co-agonist of NMDA receptors.
    DAO-IN-1
  • HY-142125
    Broussochalcone A
    		Inhibitor 98.58%
    Broussochalcone A is an antioxidant and an inhibitor of Xanthine Oxidase (IC50=2.21 μM), with free radical scavenging activity. Broussochalcone A inhibits iron-induced lipid peroxidation and nitric oxide synthesis in lipopolysaccharide (LPS) -activated macrophages. Broussochalcone A also induces Apoptosis of human renal carcinoma cells by increasing ROS levels and activating FOXO3 signaling pathways.
    Broussochalcone A
  • HY-N3220
    Myricetin 3-O-galactoside
    		Inhibitor 99.27%
    Myricetin 3-O-galactoside inhibits xanthine oxidase (XO) activity, lipid peroxidation and scavenges the free radical. Myricetin 3-O-galactoside inhibits lipid peroxidation with an IC50 of 160 μg/mL. Antioxidant activity.
    Myricetin 3-O-galactoside
  • HY-B0219R
    Allopurinol (Standard)
    		Inhibitor
    Allopurinol (Standard) is the analytical standard of Allopurinol. This product is intended for research and analytical applications. Allopurinol is a potent and orally active xanthine oxidase inhibitor with an IC50 value of 0.2-50 μM. Allopurinol can be used in the research of hyperuricemia and gout. Allopurinol decreases the expression of HIF-1α and HIF-2α protein. Allopurinol shows anti-depressant and anti-nociception activity. Anti-leishmanial effect.
    Allopurinol (Standard)
  • HY-116442
    Azapropazone
    		Inhibitor 99.67%
    Azapropazone is an orally active nonsteroidal anti-inflammatory agent. Azapropazone inhibits Xanthine oxidase activity with an IC50 of 70-140 μg/mL. Azapropazone exerts significant cardiomyocyte protective effects on dogs with ischemia-reperfusion injury. Azapropazone reduces arthritis. Azapropazone inhibits Adrenaline-induced platelet aggregation. Azapropazone can be used for the research of myocardial ischemia and reperfusion injury, adjuvant arthritis, and gouty arthritis.
    Azapropazone
  • HY-14268S1
    Febuxostat-d7
    		Inhibitor 99.55%
    Febuxostat-d7 is deuterium labeled Febuxostat. Febuxostat (TEI 6720) is selective xanthine oxidase inhibitor with a Ki of 0.6 nM.
    Febuxostat-d<sub>7</sub>
  • HY-W047187
    Lavandoside
    		Inhibitor 99.98%
    Lavandoside is an ABTS?+ free radical scavenger and a moderate inhibitor of xanthine oxidase (XO), with an IC50 of 71.6 μM for inhibiting NO production in LPS-induced macrophages. Lavandoside exerts its antioxidant and potential anti-inflammatory effects by directly scavenging free radicals and inhibiting XO activity, a mechanism related to the hydroxyl groups in its molecular structure. Lavandoside can be isolated from lavender and can be used in the development of natural antioxidants and in research on oxidative stress-related diseases and inflammation-related diseases.
    Lavandoside
  • HY-Y0106
    2,6-Dihydroxyacetophenone
    		Inhibitor 99.85%
    2,6-Dihydroxyacetophenone, a polyphenolic derivative of Acetophenone (HY-Y0989), is an orally active mTOR inhibitor. 2,6-Dihydroxyacetophenone shows antioxidant activity. 2,6-Dihydroxyacetophenone inhibits cell growth and proliferation in CRC cells. 2,6-Dihydroxyacetophenone arrests at G0/G1 phase of cell cycle, induces apoptosis and suppresses cell migration in CRC cells. 2,6-Dihydroxyacetophenone inhibits xanthine oxidase (XOD) with an IC50 of 1.24 mM. 2,6-dihydroxyacetophenone improves uric acid metabolism in hyperuricemia mice, reduces plasma cholesterol in hypercholesterolemic rats, and inhibits lipid accumulation in HFD-induced obese mice. 2,6-Dihydroxyacetophenone can be used for the study of colorectal cancer (CRC), hyperuricemia and hypercholesterolemia.
    2,6-Dihydroxyacetophenone
  • HY-141508
    Flazin
    		Inhibitor 99.64%
    Flazin is a non-enzymatic protein glycation inhibitor, also inhibits peroxynitrite (ONOO-), with an IC50 value of 85.31 μM for bovine serum albumin (BSA) glycation and an EC50 value of 71.99 μM for ONOO-. Flazin can be used for researching diabetes and neuronal disorders. Flazin also can used as a lipid droplet (LD) regulator against lipid disorders, and a xanthine oxidase (XOD) inhibitor.
    Flazin
  • HY-14268R
    Febuxostat (Standard)
    		Inhibitor
    Febuxostat (Standard) is the analytical standard of Febuxostat. This product is intended for research and analytical applications. Febuxostat (TEI 6720) is a potent, selective and non-purine xanthine oxidase (XO) inhibitor with a Ki value of 0.6 nM. Febuxostat has the potential for the research of hyperuricemia and gout.
    Febuxostat (Standard)
  • HY-B1135R
    Benzbromarone (Standard)
    		Inhibitor
    Benzbromarone (Standard) is the analytical standard of Benzbromarone. This product is intended for research and analytical applications. Benzbromarone is an orally active anti-gout agent. Benzbromarone has anti-infammatory, anti-oxidative stress and nephroprotective effects. Benzbromarone can be used for the research of hyperuricemia and gout.
    Benzbromarone (Standard)
  • HY-B0219S
    Allopurinol-d2
    		Inhibitor 99.36%
    Allopurinol-d2 is deuterium labeled Allopurinol. Allopurinol is a potent xanthine oxidase inhibitor (IC50 values of 0.2 to 50 μM). Allopurinol can be used for the research of hyperuricemia and gout. Antileishmanial effect.
    Allopurinol-d<sub>2</sub>
Cat. No. Product Name / Synonyms Application Reactivity