3,5-Bis(2,4,6-trichlorophenyl)-2-hydroxypyridine
3,5-Bis(2,3,4-trichlorophenyl)-4-hydroxypyridine
3,5-Bis(2,3,4-trichlorophenyl)-2-hydroxypyridine
2,6-Bis(3,4,5-trichlorophenyl)-4-hydroxypyridine
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