Ethyltrimethoxysilane

乙基三甲氧基硅烷

Also known as: trimethoxyethylsilane, Ethyl(trimethoxy)silane, Silane, ethyltrimethoxy-, EINECS 226-172-9, MFCD00051541

Ethyltrimethoxysilane (CAS 5314-55-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H14O3Si and a molecular weight of 150.248 g/mol. It is also known as trimethoxyethylsilane, Ethyl(trimethoxy)silane and Silane, ethyltrimethoxy-. Key properties include a boiling point of 124.3±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 24.2±21.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5314-55-6
Jingsj CID
J-20366-7
Molecular Formula
C5H14O3Si
Chinese Name
乙基三甲氧基硅烷
Molecular Weight
150.248 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point124.3±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point24.2±21.3 °C

Frequently Asked Questions

What is the CAS number of Ethyltrimethoxysilane?

The CAS number of Ethyltrimethoxysilane is 5314-55-6.

What are the molecular formula and molecular weight of Ethyltrimethoxysilane?

Ethyltrimethoxysilane has molecular formula C5H14O3Si and molecular weight 150.248 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyltrimethoxysilane (CAS 5314-55-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20366-7 (accessed 2026-10-23).

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