[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][C][C][C][N][C][=C][Branch1][=N][C][=Branch1][C][=O][N][Branch1][Branch1][C][Ring1][#Branch1][=O][C][N][C][=N][Ring1][O]"}, {"from": "gpt", "value": "The molecule is a 3-isobutyl-1-methylxanthine. It is functionally related to a 9H-xanthine. It is a tautomer of a 3-isobutyl-1-methyl-7H-xanthine."}]