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