[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a monocarboxylic acid anion that is the conjugate base of alpha-sulfophenylacetic acid. It is a monocarboxylic acid anion and an organosulfonic acid. It is a conjugate base of an alpha-sulfophenylacetic acid."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][S][=Branch1][C][=O][=Branch1][C][=O][O]"}]