Trimethylsilyl trifluoromethanesulfonate
Also known as: TMS triflate, TMS-OTf, Trimethylsilyl triflate, Trimethylsilyl trifluoromethylsulfonate, Trifluoromethanesulfonic acid trimethylsilyl ester, Trifluoromethanesulphonic acid trimethylsilyl ester, Trimethylsllytrifluoromethanesulphonate, Silane TMS-triflate, [(Trifluoromethane-sulfonyl)oxy]trimethylsilane
Trimethylsilyl trifluoromethanesulfonate (CAS 27607-77-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9F3O3SSi and a molecular weight of 222.258 g/mol. Key properties include a boiling point of 140.0±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 38.5±25.9 °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.
- 27607-77-8
- Jingsj CID
- J-27319-8
- Molecular Formula
- C4H9F3O3SSi
- Molecular Weight
- 222.258 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 140.0±35.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 38.5±25.9 °C |
| Exact Mass | 221.999374 |
| PSA | 51.75000 |
| LogP | 2.54 |
| Vapor Pressure | 7.8±0.2 mmHg at 25°C |
| Refractive Index | 1.379 |
| Storage Conditions | 2-8℃ |
| Additional Property | REACTS |
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 Trimethylsilyl trifluoromethanesulfonate?
The CAS number of Trimethylsilyl trifluoromethanesulfonate is 27607-77-8.
What are the molecular formula and molecular weight of Trimethylsilyl trifluoromethanesulfonate?
Trimethylsilyl trifluoromethanesulfonate has molecular formula C4H9F3O3SSi and molecular weight 222.258 g/mol.
Is Trimethylsilyl trifluoromethanesulfonate hazardous?
Trimethylsilyl trifluoromethanesulfonate 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 Trimethylsilyl trifluoromethanesulfonate?
For Trimethylsilyl trifluoromethanesulfonate, Upstream Products: Trifluoromethanesulfonic acid, Allyltrimethylsilane, Hexamethyldisiloxane; Downstream Products: 2-(trimethylsiloxy)-1,3-cyclohexadiene, Ethyl trimethylsilylacetate, Trimethylsilylketene ethyl trimethylsilyl acetal (mixture of isomers).
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 trifluoromethanesulfonate (CAS 27607-77-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27319-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.