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