xanthine

Xanthine (Isoxanthine) is a product on the pathway of purine degradation. Xanthine is subsequently converted to uric acid by the action of the Xanthine oxidase enzyme. Xanthine is found in most body tissues and fluids in various organisms. Biologically Xanthine is produced from guanine by cypin (guanine deaminase). Furthermore, Xanthines act as antagonists for adenosine receptors, with selectivity depending on whether there are substitution of alkyl groups.

Phytic acid dodecasodium salt hydrate (myo-Inositol, hexakis(dihydrogen phosphate) dodecasodium salt hydrate) is a phosphorus storage compound of seeds and cereal grains. Phytic acid dodecasodium salt hydrate inhibits the enzymatic superoxide source xanthine oxidase with an IC50 of 6 mM and has antioxidative, neuroprotective, and anti-inflammatory effects.

Oxypurinol is a xanthine oxidase inhibitor. Oxipurinol is potentially used for the treatment of congestive heart failure.

Baicalein (5,6,7-Trihydroxyflavone) is a xanthine oxidase inhibitor.

Phytic acid (Fytic Acid) is a complexing agent for removal of traces of heavy metal ions. It acts also as a hypocalcemic agent.

4-Hydroxyacetophenone (4-Acetylphenol) is a potent xanthine oxidase inhibitor.

Xanthosine (9-Beta-D-Ribofuranosylxanthine) is a xanthine nucleoside that increases the number of mammary stem cells and milk production in goats and cattle.

Prudomestin (3,5,7-Trihydroxy-4',8-dimethoxyflavone) is a natural product isolated from the heartwood of Prunus domestica, with xanthine oxidase (XO) inhibitory activity with IC50 of 6 µM.

Purpurogallin, a naturally occurring phenol extracted from Quercus spp. plants, exhibits potent xanthine oxidase inhibitory activity (IC50: 0.2 μM) and also possesses antioxidant and anti-inflammatory effects.

Forsythoside F (Arenarioside) is a natural compound with GI50 values ranging from 10 to 16 μM against B16F10 cells.

Myricetin 3-O-galactoside (Myricetin 3-O-beta-D-galactopyranoside) can inhibit xanthine oxidase (xanthine oxidase; XO) activity, lipid peroxidation and scavenging free radicals. Myricetin 3-O-galactoside has many effects, including cytotoxicity, anti-oxidation, anti-genotoxicity, anti-infectivity, anti-inflammatory and antioxidant activities, and its main effect is to inhibit the synthesis of inducible nitric oxide synthase (iNOS). The IC50 of Myricetin 3-O-galactoside inhibited lipid peroxidation was 160 μg/mL.

Roemerine ((-)-Roemerine) is a porphyrin alkaloid from Senegalese lychee with antifungal and anticancer activity that prevents berberine efflux through inhibition of Bmr. Roemerine increases cell membrane permeability in a concentration-dependent manner and has been used in studies of fungal infections and prostate cancer.

Blumeatin shows XO inhibitory activity.

Fraxamoside is a xanthine oxidase inhibitor (XOI) comparable in potency in vitro to the standard antigout drug allopurinol. It shows significant free radical scavenging effect against DPPH(EC50=62.6 uM).

Tetrahydroamentoflavone is a potent XO inhibitor (IC50 = 92 nM, Ki = 982 nM) with anti-inflammatory effects. Tetrahydroamentoflavone can be used for studies about inflammation and gout.

Xanthine oxidase-IN-8 (Icarisids J) (Compound 7) acts as an inhibitor of xanthine oxidase with an inhibitory concentration (IC50) of 29.71 μM [1].

Xanthine Oxidase-IN-9 (also known as Icarisids E or Compound 2) effectively inhibits xanthine oxidase (XOD) with an IC50 value of 31.81 μM [1].

8-methyl-xanthine is a useful organic compound for research related to life sciences and the catalog number is T131587.

3-Methylxanthine, a xanthine derivative, is a cyclic guanosine monophosphate (GMP) inhibitor with an IC50 of 920 μM on guinea-pig isolated trachealis muscle. It inhibits xanthine crystallization and could protect patients with xanthinuria from developing renal xanthine calculi.

Hypoxanthine (Purin-6-ol), also known as purine-6-ol or Hyp. Hypoxanthine is a naturally occurring purine derivative and a reaction intermediate in the metabolism of adenosine and in the formation of nucleic acids by the nucleotide salvage pathway. Under normal circumstances hypoxanthine is readily converted to uric acid.hypoxanthine is first oxidized to xanthine, which is further oxidized to uric acid by xanthine oxidase.

7-Methylxanthine is a methyl derivative of xanthine, the purine component of human urinary calculi.7-Methylxanthine has an affinity for adenosine receptors.7-Methylxanthine is a methyl derivative of xanthine, the purine component of human urinary calculi.7-Methylxanthine has an affinity for adenosine receptors.

Hypoxanthine (Standard) is the standard substance of Hypoxanthine, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Hypoxanthine (Purin-6-ol), also known as purine-6-ol or Hyp. Hypoxanthine is a naturally occurring purine derivative and a reaction intermediate in the metabolism of adenosine and in the formation of nucleic acids by the nucleotide salvage pathway. Under normal circumstances hypoxanthine is readily converted to uric acid.hypoxanthine is first oxidized to xanthine, which is further oxidized to uric acid by xanthine oxidase.

1-Methylxanthine is a caffeine derivative. 1-Methylxanthine is an essential human urinary metabolite of caffeine and theophylline (1,3-dimethylxanthine, TP). 1-Methylxanthine enhances the radiosensitivity of tumor cells.

Paraxanthine (1,7-dimethylxanthine) is a metabolite of caffeine (sc-202514) which functions as an adenosine receptor ligand and a PARP-1 inhibitor in pulmonary epithelial cells. Studies suggest that Paraxanthine is structurally similar to caffeine and possibly mediates the physiological effects of caffeine. Also Paraxanthine acts as a competitive phosphodiesterase inhibitor, which increases intracellular cAMP, activates PKA, inhibits TNF-α and leukotriene synthesis. In addition, Paraxanthine acts as a Na+/K+ ATPase enzymatic effector.