[{"from": "human", "value": "Describe this molecule. [C][C@H1][Branch1][N][C][C][C@@H1][Branch1][=Branch1][C][Branch1][C][C][C][O][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an optically active form of 6-hydroxy-3,7-dimethyloctanoic acid, having (3R,6S)-configuration. It is a conjugate acid of a (3R,6S)-6-hydroxy-3,7-dimethyloctanoate."}]