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Catsyn? 2-(5-Chloropent-1-ynyl)-4,4,5,5-tetramethyl-(1,3,2) dioxaborolane | CAS 159087-42-0?? ?? ??? ?????. ? ??? C11H18BClO2??, ???? 228.52g/mol??, ??? ????? NLT 98%???.