[{"from": "human", "value": "Describe this molecule. [C][Branch1][=C][C][=Branch1][C][=O][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1]"}, {"from": "gpt", "value": "The molecule is a hydroxy monocarboxylic acid anion obtained by deprotonation of the carboxy and phosphate OH groups of (S)-2-hydroxy-3-oxo-4-(phosphonooxy)butanoic acid; major species at pH 7.3. It is a hydroxy monocarboxylic acid anion, an organophosphate oxoanion and a 3-oxo monocarboxylic acid anion. It is a conjugate base of a (S)-2-hydroxy-3-oxo-4-(phosphonooxy)butanoic acid. It is an enantiomer of a (R)-2-hydroxy-3-oxo-4-(phosphonatooxy)butanoate(3-)."}]