4-Chloro-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-carboxylic acid
4-Chloro-6-fluoro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-Chloro-2-fluoro-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-Chloro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxylic acid