Methyl 2-nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-carboxylate
4-Nitro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-carboxylic acid
3-Nitro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxylic acid
3-Nitro-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-carboxylic acid