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Catsyn? 1,1,2,2-Tetrakis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)phenyl)ethene | CAS 1660996-72-4?? ?? ??? ?????. ? ??? C50H64B4O8??, ???? 836.28g/mol??, ??? ????? NLT 98%???.