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