Ethyldimethylsilane

二甲基乙基硅烷

Also known as: Dimethylethylsilane, Ethyl(dimethyl)silane, Silane, ethyldimethyl-, ethyl(dimethyl)silicon, ethyl-dimethylsilicon, ethyldimethyl-silan, DK387, DK388, MFCD00009016, EINECS 212-061-2

Ethyldimethylsilane (CAS 758-21-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H12Si and a molecular weight of 88.224 g/mol. It is also known as Dimethylethylsilane, Ethyl(dimethyl)silane and Silane, ethyldimethyl-. Key properties include a boiling point of 45.0±0.0 °C at 760 mmHg, a density of 0.668 g/mL at 25ºC(lit.) and a flash point of -46.7±3.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
758-21-4
Jingsj CID
J-1359639-6
Molecular Formula
C4H12Si
Chinese Name
二甲基乙基硅烷
Molecular Weight
88.224 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point45.0±0.0 °C at 760 mmHg
Density0.668 g/mL at 25ºC(lit.)
Flash Point-46.7±3.4 °C

Frequently Asked Questions

What is the CAS number of Ethyldimethylsilane?

The CAS number of Ethyldimethylsilane is 758-21-4.

What are the molecular formula and molecular weight of Ethyldimethylsilane?

Ethyldimethylsilane has molecular formula C4H12Si and molecular weight 88.224 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyldimethylsilane (CAS 758-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359639-6 (accessed 2026-10-22).

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