3-(Difluoromethyl)-2-(trifluoromethyl)pyridine-5-carboxylic acid
2-(Difluoromethyl)-6-(trifluoromethyl)pyridine-4-carboxylic acid
2-(Difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxylic acid
3-(Difluoromethyl)-5-(trifluoromethyl)pyridine-4-carboxaldehyde