[{"from": "human", "value": "Provide a description of this molecule. [C][N][C][=Branch1][C][=O][C][=C][Branch1][=Branch2][N][C][=Branch1][C][=O][N][Ring1][=Branch1][N][C][Ring1][O][=O]"}, {"from": "gpt", "value": "The molecule is an oxopurine that is 7,9-dihydro-1H-purine-2,6,8(3H)-trione substituted by a methyl group at N-1. It is one of the metabolites of caffeine found in human urine. It has a role as a human xenobiotic metabolite and a mouse metabolite. It is functionally related to a 7,9-dihydro-1H-purine-2,6,8(3H)-trione. It is a conjugate acid of a 1-methylurate anion."}]