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