Bromotrimethylsilane

三甲基溴硅烷

Also known as: Trimethylsilyl bromide, Trimethylbromosilane, TMS bromide, bromotrimethyl-Silane, bromo(trimethyl)silane, TMBS, Trimethylsilicon bromide, trimethylsilylbromide, Me3SiBr, Silane, bromotrimethyl-

Bromotrimethylsilane (CAS 2857-97-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3H9BrSi and a molecular weight of 153.093 g/mol. It is also known as Trimethylsilyl bromide, Trimethylbromosilane and TMS bromide. Key properties include a melting point of -43 °C, a boiling point of 79.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of -11.1±13.4 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2857-97-8
Jingsj CID
J-1498999-9
Molecular Formula
C3H9BrSi
Chinese Name
三甲基溴硅烷
Molecular Weight
153.093 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-43 °C
Boiling Point79.0±0.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point-11.1±13.4 °C

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of Bromotrimethylsilane?

The CAS number of Bromotrimethylsilane is 2857-97-8.

What are the molecular formula and molecular weight of Bromotrimethylsilane?

Bromotrimethylsilane has molecular formula C3H9BrSi and molecular weight 153.093 g/mol.

Is Bromotrimethylsilane hazardous?

Bromotrimethylsilane has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Bromotrimethylsilane (CAS 2857-97-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498999-9 (accessed 2026-10-22).

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