4-(Difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine-3-carbonyl chloride
4-(Difluoromethyl)-6-nitro-3-(trifluoromethyl)pyridine-2-carbonyl chloride
4-(Difluoromethyl)-2-nitro-3-(trifluoromethyl)pyridine-6-carbonyl chloride
5-(Difluoromethyl)-3-nitro-4-(trifluoromethyl)pyridine-2-carbonyl chloride