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