3-Nitro-6-(trifluoromethoxy)pyridine-2-sulfonamide
2,3-Diiodo-5-nitro-6-(trifluoromethoxy)pyridine
4-Nitro-5-(trifluoromethoxy)pyridine-2-sulfonamide
4-Nitro-2-(trifluoromethoxy)pyridine-6-sulfonamide
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