Synonyms: Histidine,N,1-bis(2,4-dinitrophenyl)- (7CI);Histidine, N,1-bis(2,4-dinitrophenyl)-, L-(8CI);Imidazole-4-alanine, N,1-bis(2,4-dinitrophenyl)-, L- (6CI);Di-2,4-dinitrophenyl-L-histidine;N,N'-Di(2,4-DNP)-L-histidine;N,N'-Di(2,4-dinitrophenyl)-L-histidine;NSC 89980;