Trimethylsilyl methanesulfonate
Also known as: Trimethylsilyl methanesulphonate, Methanesulfonic acid trimethylsilyl ester, Methylsulfonyloxytrimethylsilane, Trimethylsilyl mesylate, Silanol, 1,1,1-trimethyl-, 1-methanesulfonate, Silanol, trimethyl-, methanesulfonate
Trimethylsilyl methanesulfonate (CAS 10090-05-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H12O3SSi and a molecular weight of 168.287 g/mol. Key properties include a boiling point of 209.8±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 66.7±18.7 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 10090-05-8
- Jingsj CID
- J-11479-4
- Molecular Formula
- C4H12O3SSi
- Molecular Weight
- 168.287 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 209.8±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 66.7±18.7 °C |
| Exact Mass | 168.027634 |
| PSA | 51.75000 |
| LogP | 1.01 |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.420 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
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 Trimethylsilyl methanesulfonate?
The CAS number of Trimethylsilyl methanesulfonate is 10090-05-8.
What are the molecular formula and molecular weight of Trimethylsilyl methanesulfonate?
Trimethylsilyl methanesulfonate has molecular formula C4H12O3SSi and molecular weight 168.287 g/mol.
Is Trimethylsilyl methanesulfonate hazardous?
Trimethylsilyl methanesulfonate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethylsilyl methanesulfonate (CAS 10090-05-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11479-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.