[{"from": "human", "value": "Provide a description of this molecule. [C][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is the conjugate base of (S)-3-hydroxybutyric acid. It is a conjugate base of a (S)-3-hydroxybutyric acid. It is an enantiomer of a (R)-3-hydroxybutyrate."}]