Bromotrimethylsilane
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. 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. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2857-97-8
- Jingsj CID
- J-1498999-2
- Molecular Formula
- C3H9BrSi
- Molecular Weight
- 153.093 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -43 °C |
|---|---|
| Boiling Point | 79.0±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | -11.1±13.4 °C |
| Exact Mass | 151.965683 |
| LogP | 2.34 |
| Vapor Pressure | 100.3±0.1 mmHg at 25°C |
| Refractive Index | 1.424 |
| Additional Property | DECOMPOSES |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
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 and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Bromotrimethylsilane?
For Bromotrimethylsilane, Upstream Products: Hexamethyldisilane, Hexamethyldisiloxane, Ethyl trimethylsilylacetate; Downstream Products: N,N-Diethyl-1,1,1-trimethylsilanamine, dimethyl trimethylsilyl phosphite, Bis(trimethylsilyl) selenide.
Data compiled from public chemical databases such as PubChem 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-1498999-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.