12236-68-9 2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-((2-methoxy-4-nitrophenyl)azo)- 6985-95-1 EINECS 230-250-8 N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-((2-methoxy-4-nitrophenyl)azo)naphthalene-2-carboxamide