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Catsyn? Tetrakis(4-ethynylphenyl)methane | CAS 177991-01-4?? ?? ??? ?????. ? ??? C33H20??, ???? 416.51g/mol??, ??? ????? NLT 98%???.
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2-Chloropyridine-3-boronicacid
Tert-butyl 4-vinylphenyl carbonate
2,5-DI(4-Formylphenyl)thiophene