3,4-Dichloro-6-(trifluoromethoxy)pyridine-2-sulfonamide
4-Amino-2,5-dihydroxy-3-(trifluoromethoxy)pyridine
3,4-Dichloro-2-(trifluoromethoxy)pyridine-6-sulfonamide
2-Amino-4,6-dihydroxy-3-(trifluoromethoxy)pyridine
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