The molecule is an alpha-amino acid that consists of 2-amino-3-oxo-4-hydroxybutanoic acid in which the hydrogen of the hydroxy function is substituted by a phospho group. It is an O-phosphoamino acid and a non-proteinogenic alpha-amino acid. It is a conjugate acid of a 2-amino-3-oxo-4-(phosphonatooxy)butanoate.
2-amino-3-oxo-4-phosphonooxybutanoic acid