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