2-((4-???-2-??????)???)??? L-????? ? 2,4-DINITRO-N-ETHYLANILINE N-(2,4-DINITROPHENYL)-L-ALANINE 3-PHENYLAMINO-PROPIONIC ACID 2-Nitro-N-hydroxyethyl aniline N-Methyl-L-aspartic acid N-METHYL-DL-ASPARTIC ACID 2-Amino-4-nitro-N-(2-hydroxyethyl)aniline 2,4-DINITRO-N-(2-HYDROXYETHYL)ANILINE DL-Homoserine DNP-L-ASPARTIC ACID (S)-N-(4-NITRO-PHENYL)-L-ALANINE 3-AMINO-3-(4-NITROPHENYL)PROPIONIC ACID N-(1-methylethyl)benzene-1,4-diamine N-(2,4-DINITROPHENYL)GLYCINE (4-Nitroanilino)acetic acid DNP-DL-ALPHA-AMINO-N-BUTYRIC ACID