2,5-Bis(2,3,4-trichlorophenyl)-4-methylpyridine
2,5-Bis(2,3,4-trichlorophenyl)-3-methylpyridine
2,3-Bis(3,4,5-trichlorophenyl)-5-methylpyridine
2,3-Bis(3,4,5-trichlorophenyl)-4-methylpyridine
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