21820-51-9 L-3-(4-Hydroxyphenyl)alanine 4'-phosphate L-Phosphotyrosine L-Tyrosine, dihydrogen phosphate (ester) L-Tyrosine, dihydrogen phosphate (ester) (9CI) L-Tyrosine-O-phosphate L-tyrosine, O-phosphono- O-Phospho-L-tyrosine O-Phosphotyrosine Phospho-L-tyrosine Phosphotyrosine Tyrosine O-phosphate Tyrosine, di-H phosphate (7CI) Tyrosine, dihydrogen phosphate (ester), L- (8CI) Tyrosine, phosphate (6CI) pY