DL-β-3,4-DIHYDROXYPHENYL-ALANINEDL-DopaDL-3-Hydroxytyrosine3-(3,4-Dihydroxyphenyl)-DL-alanineDL-3,4-DIHYDROXYPHENYLALANINE2-amino-3-(3,4-dihydroxyphenyl)propanoic acid(S)-2-amino-3-(3,4-dihydroxyphenyl)propanoic acid3,4-Dihydroxy-DL-phenylalanine3,4-二羟苯基-DL-苯基丙氨酸3-Hydroxy-DL-tyrosineDL-beta-(3,4-dihydroxyphenyl)alanine(+-)-3-(3,4-dihydroxyphenyl)alanine3',4'-dihydroxyphenylalaninedopa3-hydroxytyrosinedl-beta-(3,4-dihydroxyphenyl)-alpha-alanineDL-3,4-dopaDL-dihydroxyphenylalanine(R,S)-dopa3-hydroxy-DL-tyrosine(+-)-dopabeta-(3,4-dihydroxyphenyl)-DL-alpha-alanineDL-dioxyphenylalanine