4-(Difluoromethyl)-3-nitro-5-(trifluoromethyl)pyridine-2-carboxaldehyde
4-(Difluoromethyl)-3-nitro-2-(trifluoromethyl)pyridine-5-carboxaldehyde
3-(Difluoromethyl)-6-nitro-4-(trifluoromethyl)pyridine-2-methanol
4-(Difluoromethyl)-5-nitro-2-(trifluoromethyl)pyridine-3-methanol