[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][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 monoalkyl phosphate that is pentane substituted at positions 3 and 4 by oxo groups, at position 2 by a hydroxy group and at position 1 by a phosphooxy group (the S-enantiomer). It is a monoalkyl phosphate, an alpha-diketone, a secondary alcohol and a secondary alpha-hydroxy ketone. It is a conjugate acid of a (2S)-2-hydroxy-3,4-diketopentyl phosphate(2-)."}]