2,6-Bis(trifluoromethyl)-4-(trifluoromethoxy)pyridine
5-Fluoro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-carboxylic acid
3-Fluoro-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxylic acid
3-Fluoro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-carboxylic acid