4-Chloro-6-(chloromethyl)-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Chloro-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-Chloro-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Chloro-5-(chloromethyl)-4-(trifluoromethoxy)pyridine-2-carboxaldehyde