[{"from": "human", "value": "Provide a description of this molecule. [O][P][=Branch1][C][=S][Branch1][C][O][O]"}, {"from": "gpt", "value": "The molecule is a phosphorothioic acid. It is a conjugate acid of a thiophosphate(2-). It is a tautomer of a phosphorothioic O,O,S-acid."}]