Trimethyl[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]silane

2-三甲基硅基-1-乙基硼酸频哪醇酯

Also known as: 2-Trimethylsilyl-1-ethylboronic acid pinacol ester, Trimethyl(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl)silane, 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[2-(trimethylsilyl)ethyl]-, MFCD03788725

Trimethyl[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]silane (CAS 165904-20-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H25BO2Si and a molecular weight of 228.21100 g/mol. It is also known as 2-Trimethylsilyl-1-ethylboronic acid pinacol ester, Trimethyl(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl)silane and 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[2-(trimethylsilyl)ethyl]-. Key properties include a boiling point of 232.83ºC at 760 mmHg, a density of 0.869g/cm3 and a flash point of 94.612ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
165904-20-1
Jingsj CID
J-36814-2
Molecular Formula
C11H25BO2Si
Chinese Name
2-三甲基硅基-1-乙基硼酸频哪醇酯
Molecular Weight
228.21100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point232.83ºC at 760 mmHg
Density0.869g/cm3
Flash Point94.612ºC

Frequently Asked Questions

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

The CAS number of Trimethyl[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]silane is 165904-20-1.

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

Trimethyl[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]silane has molecular formula C11H25BO2Si and molecular weight 228.21100 g/mol.

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

Last updated:

How to cite: Jingsj. "Trimethyl[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]silane (CAS 165904-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36814-2 (accessed 2026-10-23).

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