[{"from": "human", "value": "Describe this molecule. [C][Branch1][=C][C@@H1][Branch1][#Branch2][C][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is a 3-sulfopropanediol(1-) that has S-configuration. It is an enantiomer of a (2R)-3-sulfopropanediol(1-)."}]