[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch2][C][S][=Branch1][C][=O][=Branch1][C][=O][O][S]"}, {"from": "gpt", "value": "The molecule is an organosulfonic acid consisting of sulfonic acid having a 2-mercaptoethyl group attached to sulfur. It has a role as a coenzyme. It is an organosulfonic acid and a thiol. It is a conjugate acid of a coenzyme M(1-)."}]