[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an alkanesulfonic acid in which the sulfonic acid group is attached to a propan-2-yl group. It is a conjugate acid of a propane-2-sulfonate."}]