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