[{"from": "human", "value": "Describe this molecule. [C][C][C@H1][Branch1][C][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is the conjugate base of (2R,3S)-2-hydroxy-3-methylpentanoic acid. It is functionally related to a valerate. It is a conjugate base of a (2R,3S)-2-hydroxy-3-methylpentanoic acid."}]