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