[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch1][C][S][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid that is propionic acid in which one of the methyl hydrogens is replaced by a sulfino group. It is a monocarboxylic acid and an organosulfinic acid. It is a conjugate acid of a 3-sulfinatopropionate."}]