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9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester

Also known as: 2,2'-(9,9-Dimethyl-9H-fluorene-2,7-diyl)bis[4,4,5,5-tetramethyl-1,3,2-dioxaborolane], 2,2'-(9,9-Dimethyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane), 9,9-Dimethylfluorene-2,7-bis(boronic acid pinacol ester), 2,2'-(9,9-dimethyl-9H-fluorene-2,7-diyl)bis[4,4,5,5-tetramethyl-1,3,2-dioxaborolane], 9,9-Dimethyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene, 2-[9,9-dimethyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)fluoren-2-yl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester (CAS 325129-69-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C27H36B2O4 and a molecular weight of 446.194 g/mol. Key properties include a boiling point of 559.4±43.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 292.1±28.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
325129-69-9
Jingsj CID
J-1131508-5
Molecular Formula
C27H36B2O4
Molecular Weight
446.194 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point559.4±43.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point292.1±28.2 °C
Exact Mass446.279968
PSA36.92000
LogP4.59130
Vapor Pressure0.0±1.5 mmHg at 25°C
Refractive Index1.547

Frequently Asked Questions

What is the CAS number of 9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester?

The CAS number of 9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester is 325129-69-9.

What are the molecular formula and molecular weight of 9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester?

9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester has molecular formula C27H36B2O4 and molecular weight 446.194 g/mol.

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

Last updated:

How to cite: Jingsj. "9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester (CAS 325129-69-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1131508-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.