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