[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch1][P][=C][Branch1][=N][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a benzene ring substituted with a sulphonic acid group at position C-1, and hydroxy groups at C-3 and C-4. It has a role as a metabolite. It is a conjugate acid of a 3,4-dihydroxybenzenesulfonate."}]