1H-Benzimidazole, 4-nitro-2-(1,1,2,2-tetrafluoroethyl)-6-(trifluoromethyl)- 7-Nitro-2-(1,1,2,2-tetrafluoroethyl)-5-(trifluoromethyl)benzimidazole 73618-59-4 AI3-29271 EL 919 EL 979 EL-919