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