[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][C@H1][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a 2-hydroxy-3-oxobutyl phosphate. It is a conjugate acid of a (2S)-2-hydroxy-3-oxobutyl phosphate(2-)."}]