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Catsyn? 2,2'-Benzene-1,4-diylbis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) | CAS 99770-93-1?? ?? ??? ?????. ? ??? C18H28B2O4??, ???? 330.03g/mol??, ??? ????? NLT 98%???.