Synonyms: Butanoicacid, 2-[(2,4-dinitrophenyl)amino]-, (?à)-; Butyric acid, 2-(2,4-dinitroanilino)-, DL- (8CI);(?à)-N-2,4-Dinitrophenyl-a-amino-n-butyric acid;2,4-Dinitrophenyl-DL-a-amino-n-butyric acid; Butyric acid, 2-(2,4-dinitroanilino)-;DL-(2,4-Dinitrophenyl)-a-amino-n-butyric acid; DNP-DL-a-amino-n-butyric acid