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