3-Cyanopropyldimethylmethoxysilane

(3-氰基丙基)二甲基甲氧基硅烷

Also known as: 4-[methoxy(dimethyl)silyl]butanenitrile, Butanenitrile, 4-(methoxydimethylsilyl)-, (3-Cyanopropyl)dimethylmethoxyilane, (3-Cyanopropyl)dimethylmethoxysilane, gamma-cyanopropyldimethylmethoxysilane, 3-Cyanopropyldimethylmethoxysilane,95%

3-Cyanopropyldimethylmethoxysilane (CAS 143203-47-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H15NOSi and a molecular weight of 157.28600 g/mol. It is also known as 4-[methoxy(dimethyl)silyl]butanenitrile, Butanenitrile, 4-(methoxydimethylsilyl)- and (3-Cyanopropyl)dimethylmethoxyilane. Key properties include a boiling point of 188.6ºC at 760mmHg, a density of 0.875g/cm3 and a flash point of 67.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
143203-47-8
Jingsj CID
J-6741-8
Molecular Formula
C7H15NOSi
Chinese Name
(3-氰基丙基)二甲基甲氧基硅烷
Molecular Weight
157.28600 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point188.6ºC at 760mmHg
Density0.875g/cm3
Flash Point67.9ºC

Frequently Asked Questions

What is the CAS number of 3-Cyanopropyldimethylmethoxysilane?

The CAS number of 3-Cyanopropyldimethylmethoxysilane is 143203-47-8.

What are the molecular formula and molecular weight of 3-Cyanopropyldimethylmethoxysilane?

3-Cyanopropyldimethylmethoxysilane has molecular formula C7H15NOSi and molecular weight 157.28600 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Cyanopropyldimethylmethoxysilane (CAS 143203-47-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6741-8 (accessed 2026-10-23).

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