[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is dicarboxylate anion of 2-(3-methylthiopropyl)malic acid. It is a conjugate base of a 2-(3-methylthiopropyl)malic acid."}, {"from": "gpt", "value": "[C][S][C][C][C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}]