2-Nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-carboxylic acid
4-Nitro-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxaldehyde
5-Nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxaldehyde
4-Nitro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-carboxaldehyde