Butyl(triethoxy)silane

正丁基三乙氧基硅烷

Also known as: Triethoxybutylsilane, n-Butyltriethoxysilane, Triethoxy(butyl)silane, Silane, butyltriethoxy-, Butyltriethoxysilane, N-Butyltriethoxy Silane

Butyl(triethoxy)silane (CAS 4781-99-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H24O3Si and a molecular weight of 220.381 g/mol. It is also known as Triethoxybutylsilane, n-Butyltriethoxysilane and Triethoxy(butyl)silane. Key properties include a boiling point of 180.1±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 69.6±21.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4781-99-1
Jingsj CID
J-1438950-0
Molecular Formula
C10H24O3Si
Chinese Name
正丁基三乙氧基硅烷
Molecular Weight
220.381 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point180.1±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point69.6±21.3 °C

Frequently Asked Questions

What is the CAS number of Butyl(triethoxy)silane?

The CAS number of Butyl(triethoxy)silane is 4781-99-1.

What are the molecular formula and molecular weight of Butyl(triethoxy)silane?

Butyl(triethoxy)silane has molecular formula C10H24O3Si and molecular weight 220.381 g/mol.

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

Last updated:

How to cite: Jingsj. "Butyl(triethoxy)silane (CAS 4781-99-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1438950-0 (accessed 2026-10-25).

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