Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane

4-[(三甲基硅基)乙炔基]苯硼酸频哪醇酯

Also known as: 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenylethynyltrimethylsilane, 4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester, 4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester 97%, 4-[2-(Trimethylsilyl)ethynyl]benzeneboronic acid pinacol ester, 2-(4-Trimethylsilylethynylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, Trimethyl[2-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl]silane

Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane (CAS 870238-65-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C17H25BO2Si and a molecular weight of 300.27600 g/mol. It is also known as 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenylethynyltrimethylsilane, 4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester and 4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester 97%. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 870238-65-6
Jingsj CID: J-1062026-7
Molecular Formula: C₁₇H₂₅BO₂Si
Chinese Name: 4-[(三甲基硅基)乙炔基]苯硼酸频哪醇酯
Molecular Weight: 300.27600 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane?

The CAS number of Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane is 870238-65-6.

What are the molecular formula and molecular weight of Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane?

Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane has molecular formula C17H25BO2Si and molecular weight 300.27600 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Trimethyl((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane (CAS 870238-65-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1062026-7 (accessed 2026-10-22).

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