[{"from": "human", "value": "Provide a description of this molecule. [C][S][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an organosulfinate oxoanion resulting from the deprotonation of the sulfinic acid moiety of methanesulfinic acid. It is a conjugate base of a methanesulfinic acid."}]