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