3-Chloro-5-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
5-Chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
5-Chloro-4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
3-Chloro-4-(difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine