4-Chloro-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Chloro-2-(chloromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Chloro-6-hydroxy-2-(trifluoromethoxy)pyridine-3-acetic acid
4-Chloro-2-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid