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-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-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-N0814
    Phytic acid
    		Inhibitor
    Phytic acid (Inositol hexaphosphate) is a phosphorus storage compound of seeds and cereal grains. Phytic acid 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 inhibits the enzymatic superoxide source xanthine oxidase (XO), and has antioxidative, neuroprotective, anti-inflammatory effects.
    Phytic acid
  • HY-162910
    HDAC-IN-79
    		Inhibitor
    HDAC-IN-79 (compound 4) is an orally active dual xanthine oxidase-HDAC inhibitor (Xanthine oxidase: IC50=6.6 nM; HDAC1: IC50=134 nM; HDAC2: IC50=284 nM; HDAC3: IC50=173 nM; HDAC6: IC50=1.32 nM;), with significant in vivo anti-hyperuricemia and anti-tumor activities. HDAC-IN-79 is the most potent cell growth inhibitor (IC50=0.706 μM) of leukemia HL60 cells, induces apoptosis and autophagy, and can regulate the expression levels of signature biomarkers associated with intracellular HDAC inhibition.
    HDAC-IN-79
  • HY-N0196R
    Baicalein (Standard)
    		Inhibitor
    Baicalein (Standard) is the analytical standard of Baicalein. This product is intended for research and analytical applications. Baicalein (5,6,7-Trihydroxyflavone) is a xanthine oxidase inhibitor with an IC50 value of 3.12 μM.
    Baicalein (Standard)
  • HY-162961
    Xanthine oxidase-IN-16
    		Inhibitor
    Xanthine oxidase-IN-16 is potent and orally active xanthine oxidase (XO) inhibitor with an IC50 of 102 nM. Xanthine oxidase-IN-16 shows significant efficacy in hyperuricemia rats.
    Xanthine oxidase-IN-16
  • 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-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-14874
    Topiroxostat
    		Inhibitor 99.63%
    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-19657
    Oxypurinol
    		Inhibitor 98.74%
    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-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-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-N0814A
    Phytic acid dodecasodium hydrate
    		Inhibitor ≥98.0%
    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-N3220
    Myricetin 3-O-galactoside
    		Inhibitor ≥99.0%
    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-139585
    Tigulixostat
    		Inhibitor 99.18%
    Tigulixostat (LC350189) is an orally active, non-purine selective xanthine oxidase inhibitor. Tigulixostat lowers the production of uric acid. Tigulixostat can be used for gout and hyperuricemia study.
    Tigulixostat
  • HY-N8600
    7,8,3′,4′-Tetrahydroxyflavone
    		Inhibitor 99.51%
    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-153968
    URAT1&XO inhibitor 1
    		Inhibitor 99.96%
    URAT1&XO inhibitor 1 (compound 29) is a dual inhibitor of both URAT1 (IC50=~10 μM) and Xanthine Oxidase (IC50=1.01 μM). URAT1&XO inhibitor 1 results hypouricemic effect in potassium oxonate-induced hyperuricemia rat model. URAT1&XO inhibitor 1 is used for hyperuricemia research.
    URAT1&XO inhibitor 1
Cat. No. Product Name / Synonyms Application Reactivity