3,5-Difluoro-2,4,6-tris(2,4,5-trichlorophenyl)pyridine
3,5-Difluoro-2,4,6-tris(perfluorophenyl)pyridine
2,4-Difluoro-3-(2,4,5-trichlorophenyl)-6-(trifluoromethyl)pyridine
3,5-Difluoro-4-(2,4,5-trichlorophenyl)pyridine
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