[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an organosulfonate oxoanion that is the conjugate base of coenzyme M; major species at pH 7.3. It is a conjugate base of a coenzyme M."}, {"from": "gpt", "value": "[C][Branch1][#Branch2][C][S][=Branch1][C][=O][=Branch1][C][=O][O-1][S]"}]