[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][S][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the carboxymethoxy derivative of succinic acid. It is functionally related to a succinic acid. It is a conjugate acid of a 2-(carboxylatomethoxy)succinate(3-)."}]