has role is tautomer of metabolite 3-methylxanthine 3-methyl-9H-xanthine 166.049 166.13740 2-oxo-3-methylhypoxanthine 3 MX 3,9-dihydro-3-methyl-1H-purine-2,6-dione 3-Methylxanthine 3-methyl-3,7(9)-dihydro-purine-2,6-dione 3-methyl-3,9-dihydro-1H-purine-2,6-dione 3-methyl-3,9-dihydro-2H,6H-purine-2,6-dione A 3-methylxanthine tautomer where the imidazole proton is located at the 9-position. C6H6N4O2 CAS:1076-22-8 CHEBI:62207 Cn1c2[nH]cnc2c(=O)[nH]c1=O GMSNIKWWOQHZGF-UHFFFAOYSA-N InChI=1S/C6H6N4O2/c1-10-4-3(7-2-8-4)5(11)9-6(10)12/h2H,1H3,(H,7,8)(H,9,11,12) KEGG:C16357 MetaCyc:RXN-11546 PMID:10579878 PMID:11465391 PMID:1676739 PMID:2576447 PMID:7503772 PMID:7632164 PMID:8641328 Reaxys:612099 chebi_ontology 3-methyl-7H-xanthine