4,4,5,5-Tetramethyl-2-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane

4,4,5,5-四甲基-2-(4-{2-[4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷-2-基)苯基]乙炔基}苯基)-1,3,2-二氧硼杂环戊烷

Also known as: Diphenylacetylene-4,4'-diboronic acid bis(pinacol) ester, 1,2-Bis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetylene, Bis[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetylene, 4,4'-(Acetylene-1,2-diyl)bis(phenylboronic acid pinacol ester), 4,4'-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)diphenylacetylene

4,4,5,5-Tetramethyl-2-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane (CAS 849681-64-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C26H32B2O4 and a molecular weight of 430.15200 g/mol. It is also known as Diphenylacetylene-4,4'-diboronic acid bis(pinacol) ester, 1,2-Bis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetylene and Bis[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetylene. Key property: a melting point of 275-280°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
849681-64-7
Jingsj CID
J-1000384-6
Molecular Formula
C26H32B2O4
Chinese Name
4,4,5,5-四甲基-2-(4-{2-[4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷-2-基)苯基]乙炔基}苯基)-1,3,2-二氧硼杂环戊烷
Molecular Weight
430.15200 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point275-280°C

Frequently Asked Questions

What is the CAS number of 4,4,5,5-Tetramethyl-2-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane?

The CAS number of 4,4,5,5-Tetramethyl-2-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane is 849681-64-7.

What are the molecular formula and molecular weight of 4,4,5,5-Tetramethyl-2-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane?

4,4,5,5-Tetramethyl-2-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane has molecular formula C26H32B2O4 and molecular weight 430.15200 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-(4-{2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl}phenyl)-1,3,2-dioxaborolane (CAS 849681-64-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1000384-6 (accessed 2026-10-22).

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