2-Cyano-4-nitro-6-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-carboxaldehyde
2-Chloro-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Cyano-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxylic acid