4-(Chloromethyl)-3-(difluoromethyl)-5-methylpyridine-2-carboxaldehyde
4-(Chloromethyl)-3-(difluoromethyl)-2-methylpyridine-6-carboxaldehyde
4-(Chloromethyl)-3-(difluoromethyl)-2-methylpyridine-5-carboxaldehyde
4-(Chloromethyl)-6-(difluoromethyl)-2-methylpyridine-3-carboxaldehyde