2-(9,9'-Spirobi[fluoren]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

9,9-螺二芴-2-硼酸频哪醇酯

Also known as: 9,9-Spirodifluorene-2-boronic acid pinacol ester, 9,9'-Spirobi[9H-fluoren]-2-ylboronic acid pinacol ester, 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[fluoren]-2-yl)-1,3,2-dioxaborolane, 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene], 2-(9,9'-Spirobi[fluoren]-7-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 9,9-Spirodifluorene-2-boronic acid picol ester

2-(9,9'-Spirobi[fluoren]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 884336-44-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C31H27BO2 and a molecular weight of 442.356 g/mol. It is also known as 9,9-Spirodifluorene-2-boronic acid pinacol ester, 9,9'-Spirobi[9H-fluoren]-2-ylboronic acid pinacol ester and 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[fluoren]-2-yl)-1,3,2-dioxaborolane. Key properties include a melting point of 248.0 to 252.0 °C, a boiling point of 585.6±29.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 308.0±24.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

884336-44-1

Jingsj CID

J-881241-4

Molecular Formula

C₃₁H₂₇BO₂

Chinese Name

9,9-螺二芴-2-硼酸频哪醇酯

Molecular Weight

442.356 g/mol

Category

Organic Acids

Last updated

8/21/2026