5-(Difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-Hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-5-carboxylic acid
2-Hydroxy-3-nitro-5-(trifluoromethoxy)pyridine-4-carboxylic acid
3-(Difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine