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Catsyn? 1,3,2-Dioxaborolane, 2,2'-(9,9-dimethyl-9H-fluorene-2,7-diyl)bis[4,4,5,5-tetramethyl] | CAS 325129-69-9?? ?? ??? ?????. ? ??? C27H36B2O4??, ???? 446.19g/mol??, ??? ????? NLT 98%???.