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