The molecule is a non-proteinogenic alpha-amino acid that is tyrosine phosphorylated at the phenolic hydroxy group. It is an O-phosphoamino acid, a tyrosine derivative, a non-proteinogenic alpha-amino acid and an aromatic amino acid. It is a conjugate acid of an O(4)-phosphonatotyrosine(2-).
2-amino-3-(4-phosphonooxyphenyl)propanoic acid