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