SMILES: CC(=O)C(=O)[C@H](COP(=O)([O-])[O-])O
Description: The molecule is an organophosphate oxoanion obtained by deprotonation of the phosphate OH groups of (S)-4-hydroxy-2,3-pentanedione-5-yl phosphate. Major structure at pH 7.3. It is a conjugate base of a (2S)-2-hydroxy-3,4-diketopentyl phosphate.