2-(4-nitrophenyl)-5-nitrobenzimidazole, 5-nitro-2-(4-nitro-phenyl)-1(3)H-benzoimidazole, 2-(4-nitrophenyl)-5-nitro-1H-benzimidazole, 5-nitro-2-(4-nitro-phenyl)-1(3)H-benzimidazole, 5-Nitro-2-(4-nitro-phenyl)-1H-benzoimidazole, 5-Nitro-2-(4-nitro-phenyl)-1(3)H-benzimidazol, 5-nitro-2-(4-nitrophenyl)-1H-benzo[d]imidazole, 5-nitro-2-(4-nitrophenyl)-1H-benzimidazole