9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester

2-(9,9'-螺二[芴]-4-基)-4,4,5,5-四甲基-1,3,2-二氧杂环戊硼烷

Also known as: 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[fluoren]-4-yl)-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-dioxaborolane, 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene], (9,9'-Spirobi[fluoren]-4-yl)boronic Acid Pinacol Ester

9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester (CAS 1161009-89-7) is a compound in the Aliphatic Hydrocarbons 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 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[fluoren]-4-yl)-1,3,2-dioxaborolane and 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-dioxaborolane. Key properties include a melting point of 223 ºC (dichloromethane ligroine ), a boiling point of 585.6±29.0 °C at 760 mmHg, a density of 1.23±0.1 g/cm3 (20 ºC 760 Torr) 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.

1161009-89-7

Jingsj CID

J-1392475-1

Molecular Formula

C₃₁H₂₇BO₂

Chinese Name

2-(9,9'-螺二[芴]-4-基)-4,4,5,5-四甲基-1,3,2-二氧杂环戊硼烷

Molecular Weight

442.356 g/mol

Category

Aliphatic Hydrocarbons

Last updated

8/21/2026