3-Bromo-2-(difluoromethyl)-5-nitro-4-(trifluoromethyl)pyridine
3-Bromo-2-(difluoromethyl)-4-nitro-5-(trifluoromethyl)pyridine
2-Bromo-6-(difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine
2-Bromo-6-(difluoromethyl)-4-nitro-3-(trifluoromethyl)pyridine