SMILES: CN1C2=C(NC1=O)N=C(NC2=O)N
Description: The molecule is an oxopurine that is guanine with an oxo group at position 8 and a methyl substituent at position 7. It has a role as a metabolite. It is an oxopurine and a member of 2-aminopurines. It derives from a guanine.