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Catsyn? 2-(2,3-Dihydrobenzo[B][1,4]dioxin-6-YL)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane | CAS 517874-21-4?? ?? ??? ?????. ? ??? C14H19BO4??, ???? 262.11g/mol??, ??? ????? NLT 98%???.