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

Xanthine Oxidase

XO

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-N0196
    Baicalein
    Inhibitor 98.94%
    Baicalein (5,6,7-Trihydroxyflavone) is a xanthine oxidase inhibitor with an IC50 value of 3.12 μM.
    Baicalein
  • HY-17511
    Potassium oxonate
    Inhibitor 99.94%
    Potassium oxonate (Potassium azaorotate) is a uricase inhibitor that inhibits the phosphorylation of 5-FU to 5-fluorouridine-5'-monophosphate.
    Potassium oxonate
  • HY-B0219
    Allopurinol
    Inhibitor 99.97%
    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
  • HY-14268
    Febuxostat
    Inhibitor 99.94%
    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
  • HY-B1135
    Benzbromarone
    Inhibitor 99.81%
    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
  • HY-W699983
    Imidazole-15N2
    Imidazole-15N2 (Glyoxaline-15N2) is 15N labeled Imidazole. Imidazole (Glyoxaline; 1,3-Diaza-2,4-cyclopentadiene) is a heterocyclic aromatic compound. Imidazole bearing molecules have been used as corrosion, acetylcholinesterase (AChEI) and xanthine oxidase (XO) inhibitors, performing biological activities such as antifungal, antituberculosis, anti-inflammatory, antioxidant, and analgesic, amongst many others. Imidazole inhibits the enzymatic conversion of the endoperoxides (PGG2 and PGH2) to thromboxane A2 by platelet microsomes. Imidazole derivatives exhibits inhibition on SARS-CoV-2 3CLPro enzyme, which is promising for research in the field of Alzheimer’s disease, gout, COVID-19 and thrombo-embolic disease.
    Imidazole-<sup>15</sup>N<sub>2</sub>
  • HY-167709
    Azacosterol
    Inhibitor
    Azacosterol (20.25-Diazacholesterol), also known as Diazasterol, acts as a DHCR24 inhibitor and initiates a cascade of reactions in cortical neurons after being administered orally or via intraperitoneal injection.
    Azacosterol
  • HY-W104467
    (+/-)-Epicatechin
    Inhibitor
    (+/-)-Epicatechin is a xanthine oxidase inhibitor with an IC50 of 982.14 μM, and can be found in Semen Plantaginis (Plantago seed). (+/-)-Epicatechin can be used in research on diseases such as hyperuricemia and gout .
    (+/-)-Epicatechin
  • HY-N0823
    Lithospermic acid
    Inhibitor 99.92%
    Lithospermic acid ((+)-Lithospermic acid) is a plant-derived polycyclic phenolic carboxylic acid isolated from Salvia miltiorrhiza, and has the anti-oxidative and hepatoprotective activity on carbon tetrachloride (CCl4)-induced acute liver damage in vitro and in vivo.
    Lithospermic acid
  • HY-N0814
    Phytic acid (50% in water)
    Inhibitor
    Phytic acid (Inositol hexaphosphate) (50% in water) is a phosphorus storage compound of seeds and cereal grains. Phytic acid (50% in water) 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 (50% in water) inhibits the enzymatic superoxide source xanthine oxidase (XO), and has antioxidative, neuroprotective, anti-inflammatory effects.
    Phytic acid (50% in water)
  • HY-19657
    Oxypurinol
    Inhibitor 99.94%
    Oxipurinol (Oxipurinol), the major active metabolite of Allopurinol, is an inhibitor of xanthine oxidase. Oxipurinol can be used to regulate blood urate levels and treat gout.
    Oxypurinol
  • HY-113978
    6-Formylpterin
    Inhibitor ≥98.0%
    6-Formylpterin is an inhibitor of Xanthine Oxidase. 6-Formylpterin induces intracellular ROS generation and apoptosis in HL-60 cells. 6-Formylpterin suppresses cell proliferation in PanC-1 cells.
    6-Formylpterin
  • HY-N0244
    Theaflavin-3'-gallate
    98.68%
    Theaflavin-3'-gallate is a monomer of theaflavins found in black tea, which has anti-UVB damage activity and inhibits cell apoptosis and necroptosis. Theaflavin-3'-gallate acts as a pro-oxidant and induces oxidative stress in cancer cells, inhibiting xanthine oxidase (OX), with an IC50 of 7.6 μM.
    Theaflavin-3'-gallate
  • HY-14874
    Topiroxostat
    Inhibitor 99.06%
    Topiroxostat (FYX-051) is a potent and orally active xanthine oxidoreductase (XOR) inhibitor with an IC50 value of 5.3 nM and a Ki value of 5.7 nM. Topiroxostat exhibits weak CYP3A4-inhibitory activity (18.6%). Topiroxostat has the potential for hyperuricemia treatment.
    Topiroxostat
  • HY-12136
    Purpurogallin
    Inhibitor
    Purpurogallin is a naturally phenol extracted from the plants of Quercus spp, has potent xanthine oxidase (XO) inhibitory activity with an IC50 of 0.2 μM. Purpurogallin has antioxidant and anti-inflammatory effects.
    Purpurogallin
  • HY-N0327
    Lobetyolin
    Inhibitor 99.88%
    Lobetyolin, a bioactive compound, is derived from Codonopsis pilosula. Lobetyolin has anti-inflammatory, anti-oxidative and xanthine oxidase inhibiting activities. Lobetyolin also induces the apoptosis via the inhibition of ASCT2-mediated glutamine metabolism. Lobetyolin is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Lobetyolin
  • HY-N4136
    Lonicerin
    Inhibitor 99.75%
    Lonicerin (Veronicastroside) is a flavonoid with multiple biological activities. Lonicerin inhibits xanthine oxidase with an IC50 of 37.4 µg/mL. Lonicerin inhibits alginate secretion protein (AlgE). Lonicerin inhibits P. aeruginosa and C. albicans. Lonicerin has anti-inflammatory, anti-arthritic, antioxidant, antifungal, anti-bacterial, and neuroprotective properties.
    Lonicerin
  • HY-W011258
    H-Tyr-Phe-OH
    Inhibitor 99.46%
    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-142125
    Broussochalcone A
    Inhibitor
    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-109183
    Luvadaxistat
    Inhibitor 99.89%
    Luvadaxistat (TAK-831) is an orally active, highly selective, potent D-amino acid oxidase (DAAO) inhibitor. Luvadaxistat inhibits oxidative deamination of D-serine via the human recombinant DAAO enzyme with an IC50 of 14 nM. Luvadaxistat significantly increases D-serine levels in the rodent brain, plasma, and cerebrospinal fluid. Luvadaxistat has the potential for schizophrenia research.
    Luvadaxistat
Cat. No. Product Name / Synonyms Application Reactivity