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