[{"from": "human", "value": "What can you tell me about this molecule? [C][=N][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=Branch1][C][=S][N][=C][N][Ring1][Branch2]"}, {"from": "gpt", "value": "The molecule is a thiol that is the tautomer of mercaptopurine. It has a role as an antineoplastic agent and an antimetabolite. It is a tautomer of a mercaptopurine. It derives from a hydride of a 7H-purine."}]