2-(Difluoromethyl)-6-methyl-3-nitro-4-(trifluoromethyl)pyridine
6-(Difluoromethyl)-3-methyl-2-nitro-4-(trifluoromethyl)pyridine
2-(Difluoromethyl)-5-methyl-4-nitro-3-(trifluoromethyl)pyridine
Methyl 2-(difluoromethyl)-5-methyl-6-nitropyridine-3-carboxylate