has role adenine hypoxanthine CHEBI:5841 9H-purin-6(1H)-one HYPOXANTHINE Purine-6-ol CHEBI:14431 CHEBI:43237 purin-6(1H)-one YMDB:YMDB00555 PDBeChem:HPA CHEBI:17368 Hypoxanthine 1,7-dihydro-6H-purin-6-one 6-oxopurine HMDB:HMDB0000157 KEGG:C00262 Wikipedia:Hypoxanthine hypoxanthine ECMDB:ECMDB00157 Hyp A purine nucleobase that consists of purine bearing an oxo substituent at position 6. 6(1H)-purinone DrugBank:DB04076 KNApSAcK:C00001502 CHEBI:24762 MetaCyc:HYPOXANTHINE oxopurine purine nucleobase nucleobase analogue fundamental metabolite