2,3-Dimethoxy-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
2,6-Dimethyl-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
3,6-Dimethyl-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
3,6-Dimethyl-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
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