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