3-Nitro-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-acetonitrile
3-Nitro-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetonitrile
2-Nitro-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-acetonitrile
2-Nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-acetonitrile