4-(Trifluoromethyl)-L-phenylalanine (CAS NO.114926-38-4), its Synonyms are (S)-2-Amino-3-[4-(trifluoromethyl)phenyl]propionic acid ; L-Phenylalanine, 4-(trifluoromethyl)- ; (2S)-2-Amino-3-[4-(trifluoromethyl)phenyl]propanoic acid .