[{"from": "human", "value": "Provide a brief overview of this molecule. [O-1][S][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3). It is a sulfur oxoanion, a sulfur oxide and a divalent inorganic anion. It is a conjugate base of a hydrogensulfite."}]