4-Fluoro-6-nitro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
5-Fluoro-4-nitro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-Fluoro-6-nitro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-Fluoro-5-nitro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine