Synonyms: 2-[(e)-(4-nitrophenyl)diazenyl]-3-oxo-n-(2-oxo-2,3-dihydro-1h-benzimidazol-5-yl)butanamide;EINECS 258-221-5;AC1L2VAQ;AC1Q21DC;AR-1D6238;2-[(4-nitrophenyl)diazenyl]-3-oxo-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)butanamide;Butanamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-2-((4-nitrophenyl)azo)-3-oxo-;N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-2-((4-nitrophenyl)azo)-3-oxobutyramide;52846-56-7;Butanamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-2-(2-(4-nitrophenyl)diazenyl)-3-oxo-