2-Chloro-6-nitro-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
6-Chloro-4-methyl-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-Chloro-4-methyl-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-Chloro-3-methyl-6-(trifluoromethoxy)-5-(trifluoromethyl)pyridine