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![4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-2'-YL)-1,3,2-dioxaborolane](https://qncdn.chemcd.cn/catsyn/structure/SC124696.png)
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Catsyn? 4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-2'-YL)-1,3,2-dioxaborolane | CAS 2106888-79-1?? ?? ??? ?????. ? ??? C31H27BO3??, ???? 458.36g/mol??, ??? ????? NLT 98%???.
![SC122557 | 1198396-40-5 | 11,11-Dimethyl-11H-benzo[B]fluoren-2-YL)boronic acid](data:image/png;base64,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 "SC122557 | 1198396-40-5 | 11,11-Dimethyl-11H-benzo[B]fluoren-2-YL)boronic acid")
![SC124837 | 2173554-84-0 | (8-Chlorodibenzo[B,d]furan-1-YL)boronic acid](https://qncdn.chemcd.cn/catsyn/structure/SC124837.png "SC124837 | 2173554-84-0 | (8-Chlorodibenzo[B,d]furan-1-YL)boronic acid")