4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane

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

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

4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane (CAS 1346007-05-3) 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 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-, 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[fluoren]-3-yl)-1,3,2-dioxaborolane and 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[9H-fluorene]. Key properties include a melting point of 216 °C, a boiling point of 571.3±29.0 °C at 760 mmHg, a density of 1.23±0.1 g/cm3 (20 ºC 760 Torr) and a flash point of 299.3±24.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1346007-05-3
Jingsj CID
J-1529128-8
Molecular Formula
C31H27BO2
Chinese Name
2-(9,9'-螺二[芴]-3-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

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Physicochemical Properties

Melting Point216 °C
Boiling Point571.3±29.0 °C at 760 mmHg
Density1.23±0.1 g/cm3 (20 ºC 760 Torr)
Flash Point299.3±24.3 °C

Frequently Asked Questions

What is the CAS number of 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane?

The CAS number of 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane is 1346007-05-3.

What are the molecular formula and molecular weight of 4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane?

4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane has molecular formula C31H27BO2 and molecular weight 442.356 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4,4,5,5-Tetramethyl-2-(9,9'-spirobi[9H-fluoren]-3-yl)-1,3,2-dioxaborolane (CAS 1346007-05-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1529128-8 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.