4-Chloro-3-iodo-5-methyl-2-(trifluoromethoxy)pyridine
4-Chloro-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Chloro-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Chloro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid