Isobutyltrimethoxysilane

异丁基三甲氧基硅烷

Also known as: Trimethoxy(2-methylpropyl)silane, Dynasylan IBTMO, CI7810, Prosil R 178, Silane, trimethoxy(2-methylpropyl)-, i-butyltrimethoxysilane, iso-Butyltrimethoxysilan

Isobutyltrimethoxysilane (CAS 18395-30-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H18O3Si and a molecular weight of 178.301 g/mol. It is also known as Trimethoxy(2-methylpropyl)silane, Dynasylan IBTMO and CI7810. Key properties include a melting point of <0ºC, a boiling point of 154.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 43.9±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18395-30-7
Jingsj CID
J-40957-5
Molecular Formula
C7H18O3Si
Chinese Name
异丁基三甲氧基硅烷
Molecular Weight
178.301 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point<0ºC
Boiling Point154.0±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point43.9±0.0 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Isobutyltrimethoxysilane?

The CAS number of Isobutyltrimethoxysilane is 18395-30-7.

What are the molecular formula and molecular weight of Isobutyltrimethoxysilane?

Isobutyltrimethoxysilane has molecular formula C7H18O3Si and molecular weight 178.301 g/mol.

Is Isobutyltrimethoxysilane hazardous?

Isobutyltrimethoxysilane has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Isobutyltrimethoxysilane (CAS 18395-30-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40957-5 (accessed 2026-10-22).

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