Xanthine oxidase (XO) is an important enzyme catalyzing the hydroxylation of hypoxanthine to xanthine and xanthine to uric acid which is excreted by kidneys. Xanthine oxidase belongs to the molybdenum-protein family containing one molybdenum, one of the flavin adenine dinucleotides (FAD), and two iron-sulfur (2Fe-2S) centers of the ferredoxin type in each of its two independent subunits. The enzyme contains two separated substrate-binding sites. XO catalysed the oxidation of hypoxanthine to xanthine and subsequently to uric acid. Xanthine oxidase inhibitors (XOIs) are typically used in the treatment of nephropathy and renal stone diseases linked to hyperuricemia.


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Broussochalcone A

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[1][2].

  • CAS Number: 99217-68-2
  • MF: C20H20O5
  • MW: 340.37000
  • Catalog: Apoptosis
  • Density: 1.312g/cm3
  • Boiling Point: 595ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 327.7ºC

Morin 3-O-β-D-glucopyranoside

Morin 3-O-β-D-glucopyranoside is a natural flavonoid with antifungal, anticancer and antioxidant activities. Morin 3-O-β-D-glucopyranoside inhibits reverse transcriptase, protein-tyrosine kinase and xanthine oxidase, and also shows anti-HIV, antiarteriosclerotic, and superoxide scavenging activities[1].

  • Density: 1.87±0.1 g/cm3
  • Boiling Point: 875.2±65.0 °C
  • Melting Point: N/A
  • Flash Point: N/A

3',4',7,8-Tetrahydroxyflavone

7,8,3′,4′-Tetrahydroxyflavone (compound 2) is a potent xanthine oxidase (XOD) inhibitor with an IC50 value of 10.488 µM[1].

  • CAS Number: 3440-24-2
  • MF: C15H10O6
  • MW: 286.24
  • Catalog: Xanthine Oxidase
  • Density: 1.654g/cm3
  • Boiling Point: 618.9ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 240.6ºC

Xanthine oxidase-IN-4

Xanthine oxidase-IN-4 (compound 19a) is an orally active and potent xanthine oxidase (XO) inhibitor, with an IC50 of 0.039 μM. Xanthine oxidase-IN-4 exhibits hypouricemic potency in potassium oxonate induced hyperuricemia rats. Xanthine oxidase-IN-4 can be used for hyperuricemia and gout research[1].

  • CAS Number: 2642137-96-8
  • MF: C15H13N5O2
  • MW: 295.30
  • Catalog: Xanthine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Xanthine oxidase-IN-7

Xanthine oxidase-IN-7 (compound1h) is a potent andorally active XO (xanthine oxidase) inhibitor with an IC50 of 0.36 µM. Xanthine oxidase-IN-7 effectively reduces serum uric acid levels. Xanthine oxidase-IN-7 has the potential for the research of hyperuricemia and gout[1].

  • CAS Number: 2411698-59-2
  • MF: C16H14N4O2
  • MW: 294.31
  • Catalog: Xanthine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Baicalein

Baicalein (5,6,7-Trihydroxyflavone) is a xanthine oxidase inhibitor with an IC50 value of 3.12 mM.

  • CAS Number: 491-67-8
  • MF: C15H10O5
  • MW: 270.237
  • Catalog: Xanthine Oxidase
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 575.9±50.0 °C at 760 mmHg
  • Melting Point: 256-271 °C(lit.)
  • Flash Point: 225.3±23.6 °C

Xanthine oxidoreductase-IN-1

The compound is a xanthine oxidoreductase (XOR) inhibitor with high inhibitory concentration, and the value of ic50 is 7.0 nm.

  • CAS Number: 2396612-00-1
  • MF: C18H20N4O2
  • MW: 324.38
  • Catalog: Xanthine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Arenarioside

Forsythoside F (Arenarioside) is a xanthine oxidase inhibitor and possesses antihyperuricemic effects in vivo[1].

  • CAS Number: 94130-58-2
  • MF: C34H44O19
  • MW: 756.70200
  • Catalog: Xanthine Oxidase
  • Density: 1.65 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Febuxostat-d7

Febuxostat-d7 is deuterium labeled Febuxostat. Febuxostat (TEI 6720) is selective xanthine oxidase inhibitor with a Ki of 0.6 nM[1].

  • CAS Number: 1285539-74-3
  • MF: C16H9D7N2O3S
  • MW: 323.42
  • Catalog: Xanthine Oxidase
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 536.6±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 278.3±32.9 °C

Ilexoside O

Ilexoside O is a triterpene saponin isolated from the roots of Ilex pubescens. Ilexoside O exhibits weak xanthine oxidase (XOD) inhibitory activity (IC50=53.05 μM)[1].

  • CAS Number: 136552-23-3
  • MF: C53H86O22
  • MW: 1075.24
  • Catalog: Xanthine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Oxipurinol

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[1].

  • CAS Number: 2465-59-0
  • MF: C5H4N4O2
  • MW: 152.11
  • Catalog: Xanthine Oxidase
  • Density: 2.19g/cm3
  • Boiling Point: 662.9ºC at 760 mmHg
  • Melting Point: 300 °C
  • Flash Point: 354.7ºC

Febuxostat acyl glucuronide

Febuxostat acyl glucuronide (Febuxostat acyl-β-D-glucuronide) is a metabolite of Febuxostat (HY-14268). Febuxostat is a potent, selective and non-purine xanthine oxidase (XO) inhibitor[1].

  • CAS Number: 1351692-92-6
  • MF: C22H24N2O9S
  • MW: 492.50
  • Catalog: Xanthine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Topiroxostat

Topiroxostat(FYX-051) is a novel and potent xanthine oxidoreductase (XOR) inhibitor with IC50 value of 5.3 nM.IC50 value: 5.3 nM [1]Target: xanthine oxidoreductasein vitro: Steady-state kinetics study showed that FYX-051 initially behaved as a competitive-type inhibitor with a K(i) value of 5.7 × 10(-9) M, then after a few minutes it formed a tight complex with XOR via a Mo-oxygen-carbon atom covalent linkage, as reported previously [3].in vivo: FYX-051 exhibited a weak CYP3A4-inhibitory activity (18.6%); its Cmax and bioavailability were as high as 4.62 μg/mL (3 mg/kg) and 69.6%, respectively. Moreover, the t1/2 value of 39 was greater (19.7 h) than that of compound 2 (0.97 h) [1]. In the mechanistic study by 52-week oral treatment with topiroxostat at 3 mg/kg to F344 male rats, with and without citrate, simple and papillary transitional cell hyperplasias of the urinary bladder epithelium were observed in 5/17 in the topiroxostat-alone treatment group, along with xanthine-induced nephropathy, in contrast to neither xanthine crystals nor lesions in urinary organs by co-treatment group with citrate [2].

  • CAS Number: 577778-58-6
  • MF: C13H8N6
  • MW: 248.243
  • Catalog: Xanthine Oxidase
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 594.7±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 175.3±18.1 °C

Baicalein 6-O-glucoside

Baicalein 6-O-glucoside is a glucuronidation metabolite of Baicalein[1].

  • CAS Number: 28279-72-3
  • MF: C21H20O10
  • MW: 432.37800
  • Catalog: Xanthine Oxidase
  • Density: 1.642±0.06 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Xanthine oxidase-IN-5

Xanthine oxidase-IN-5 is an effective and orally active xanthine oxidase (XO) inhibitor with IC50 value of 0.70 μM. Xanthine oxidase-IN-5 displays favorable drug-like properties with ligand efficiency (LE) and lipophilic ligand efficiency (LLE) values of 0.33 and 3.41, respectively. Xanthine oxidase-IN-5 shows potent hypouricemic effects in hyperuricemic rat model[1].

  • CAS Number: 2276711-87-4
  • MF: C18H16FN3O3
  • MW: 341.34
  • Catalog: Xanthine Oxidase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Allopurinol-d2

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[1][2].

  • CAS Number: 916979-34-5
  • MF: C5H2D2N4O
  • MW: 138.12
  • Catalog: Xanthine Oxidase
  • Density: 1.92g/cm3
  • Boiling Point: >222°C
  • Melting Point: N/A
  • Flash Point: 234.117°C