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Diethoxydichlorosilane

Also known as: Dichloro(diethoxy)silane, Diaethoxy-dichlor-silan, Dichlordiethoxysilan, Dichloro-diethoxy-silane, Si(OEt)2Cl2, Silane, dichlorodiethoxy-, diethoxy-dichloro-silane, DIETHOXYDICHLOROSILANE, tech-90

Diethoxydichlorosilane (CAS 4667-38-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H10Cl2O2Si and a molecular weight of 189.113 g/mol. Key properties include a melting point of -130°C, a boiling point of 134.0±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 31.0±10.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4667-38-3
Jingsj CID
J-11602-9
Molecular Formula
C4H10Cl2O2Si
Molecular Weight
189.113 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-130°C
Boiling Point134.0±9.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point31.0±10.8 °C
Exact Mass187.982712
PSA18.46000
LogP5.15
Appearanceliquid
Vapor Pressure10.1±0.2 mmHg at 25°C
Refractive Index1.426

Frequently Asked Questions

What is the CAS number of Diethoxydichlorosilane?

The CAS number of Diethoxydichlorosilane is 4667-38-3.

What are the molecular formula and molecular weight of Diethoxydichlorosilane?

Diethoxydichlorosilane has molecular formula C4H10Cl2O2Si and molecular weight 189.113 g/mol.

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

Last updated:

How to cite: Jingsj. "Diethoxydichlorosilane (CAS 4667-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11602-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.