[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is the S-enantiomer of 3-hydroxybutyric acid; a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. It is a conjugate acid of a (S)-3-hydroxybutyrate. It is an enantiomer of a (R)-3-hydroxybutyric acid."}]