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