The molecule is a 7-methylguanine that is 7H-purine substituted by an amino group at position 2, a methyl group at position 7 and a hydroxy group at position 6. It is a tautomer of a 2-amino-7-methyl-1,7-dihydro-6H-purin-6-one and a 2-imino-7-methyl-1,2,3,7-tetrahydro-6H-purin-6-one.
2-amino-7-methyl-1H-purin-6-one