SMILES: C1=NC2=C(N1)C(=O)NC(=O)N2
Description: The molecule is an oxopurine in which the purine ring is substituted by oxo groups at positions 2 and 6 and N-9 is protonated. It has a role as a Saccharomyces cerevisiae metabolite. It is a tautomer of a 7H-xanthine.