2,3-Bis(trifluoromethyl)-4-(difluoromethoxy)pyridine
6-Difluoromethoxy-3-(trifluoromethyl)picolinic acid
6-Difluoromethoxy-2-(trifluoromethyl)nicotinic acid
5-Difluoromethoxy-4-(trifluoromethyl)picolinic acid
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