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