1,3-Dimethyluric Acid

1,3-Dimethyluric acid is an active metabolite of the methylxanthine alkaloids caffeine (Cay-14118) and theophylline (Cay-23760). It is formed from caffeine and theophylline by the cytochrome P450 (CYP) isoforms CYP1A2 and CYP2E1. 1,3-Dimethyluric acid (500 µM) scavenges hydroxyl radicals in a cell-free assay and inhibits t-butyl hydroperoxide-induced lipid peroxidation by 77% in isolated human erythrocyte membranes. It induces contractions in isolated rabbit duodenal, jejunal, and ileal preparations, but induces relaxation in isolated rabbit ascending colon preparations, in a concentration-dependent manner. Intracerebral administration of 1,3-dimethyluric acid induces clonic convulsions in mice (ED50 = 360 nmol/animal). It has been found in urinary caliculi.Formal Name: 7,9-dihydro-1,3-dimethyl-1H-purine-2,6,8(3H)-trione. CAS Number: 944-73-0. Synonyms: Ba 2751, 1,3-DMU, 1,3-DMUA, NSC 95854. Molecular Formula: C7H8N4O3. Formula Weight: 196.2. Purity: >98%. Formulation: (Request formulation change), A solid. Solubility: DMSO: Slightly soluble. lambdamax: 232, 289 nm. SMILES: O=C1NC(C(N2C)=O)=C(N1)N(C)C2=O. InChi Code: InChI=1S/C7H8N4O3/c1-10-4-3(8-6(13)9-4)5(12)11(2)7(10)14/h1-2H3,(H2,8,9,13). InChi Key: OTSBKHHWSQYEHK-UHFFFAOYSA-N. Origin: Synthetic.