Trimethoxy(octyl)silane

辛基三甲氧基硅烷

Also known as: Octyltrimethoxysilane, n-Octyltrimethoxysilane, Trimethoxyoctylsilane, 1-(Trimethoxysilyl)octane, Trimethoxy-n-octylsilane, Trimethoxycaprylylsilane, Silane, trimethoxyoctyl-, EINECS 221-338-7, MFCD00043053

Trimethoxy(octyl)silane (CAS 3069-40-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H26O3Si and a molecular weight of 234.408 g/mol. It is also known as Octyltrimethoxysilane, n-Octyltrimethoxysilane and Trimethoxyoctylsilane. Key properties include a boiling point of 191.5±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 102.2±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3069-40-7
Jingsj CID
J-29756-9
Molecular Formula
C11H26O3Si
Chinese Name
辛基三甲氧基硅烷
Molecular Weight
234.408 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point191.5±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point102.2±0.0 °C

Frequently Asked Questions

What is the CAS number of Trimethoxy(octyl)silane?

The CAS number of Trimethoxy(octyl)silane is 3069-40-7.

What are the molecular formula and molecular weight of Trimethoxy(octyl)silane?

Trimethoxy(octyl)silane has molecular formula C11H26O3Si and molecular weight 234.408 g/mol.

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

Last updated:

How to cite: Jingsj. "Trimethoxy(octyl)silane (CAS 3069-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29756-9 (accessed 2026-10-23).

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