L-Phenylalanine,N-methyl-, hydrochloride (9CI) (CAS NO.66866-67-9), its Synonyms are N-a-methyl-L-Phenylalaninehydrochloride ; -alpha-methyl-L-Phenylalanine hydrochloride ; (S)-2-(methylamino)-3-phenylpropanoic acid hydrochloride .