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