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Catsyn? 8-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-YL)-1,4-dioxaspiro[4.5]dec-7-ene | CAS 680596-79-6?? ?? ??? ?????. ? ??? C14H23BO4??, ???? 266.14g/mol??, ??? ????? NLT 98%???.