6-(Difluoromethyl)-3-nitro-4-(trifluoromethyl)pyridine-2-acetic acid
Methyl 3-(difluoromethyl)-2-nitro-5-(trifluoromethyl)pyridine-6-acetate
2-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-6-acetic acid
Methyl 3-(difluoromethyl)-2-nitro-4-(trifluoromethyl)pyridine-6-acetate