N,O-Bis(trimethylsilyl)trifluoroacetamide
Also known as: BSTFA, N,N-Bis(trimethylsilyl)trifluoroacetamide, N,N-BSTFA, 2,2,2-Trifluoro-N,N-bis(trimethylsilyl)acetamide, 2,2,2-trifluoro-N,N-bis(trimethylsilyl)ethanamide, 2,2,2-trifluoro-N,N-bis(trimethylsilyl)-Acetamide, 2,2,2-trifluoro-n,n-bis(trimethylsilyl)-acetamid, Acetamide, 2,2,2-trifluoro-N,N-bis(trimethylsilyl)-, trimethylsilyln-trimethylsilyltrifluoroacetimidate, Bis(trimethylsilyl)trifluoroacetamide
N,O-Bis(trimethylsilyl)trifluoroacetamide (CAS 21149-38-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H18F3NOSi2 and a molecular weight of 257.40100 g/mol. Key properties include a melting point of 41-44ºC(lit.), a boiling point of 87-90ºC4 mm Hg(lit.), a density of 1.018 g/cm3 and a flash point of -2.8 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 21149-38-2
- Jingsj CID
- J-1191781-0
- Molecular Formula
- C8H18F3NOSi2
- Molecular Weight
- 257.40100 g/mol
- Category
- Organic Bases
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 41-44ºC(lit.) |
|---|---|
| Boiling Point | 87-90ºC4 mm Hg(lit.) |
| Density | 1.018 g/cm3 |
| Flash Point | -2.8 °C |
| Exact Mass | 257.08800 |
| PSA | 20.31000 |
| LogP | 3.04710 |
| Vapor Pressure | 3.98mmHg at 25°C |
| Refractive Index | 1.386 |
| Storage Conditions | 0-6°C |
Frequently Asked Questions
What is the CAS number of N,O-Bis(trimethylsilyl)trifluoroacetamide?
The CAS number of N,O-Bis(trimethylsilyl)trifluoroacetamide is 21149-38-2.
What are the molecular formula and molecular weight of N,O-Bis(trimethylsilyl)trifluoroacetamide?
N,O-Bis(trimethylsilyl)trifluoroacetamide has molecular formula C8H18F3NOSi2 and molecular weight 257.40100 g/mol.
What are the upstream and downstream products of N,O-Bis(trimethylsilyl)trifluoroacetamide?
For N,O-Bis(trimethylsilyl)trifluoroacetamide, Downstream Products: Hydroquinone, Bis(trimethylsilyl)carbodiimide, 1,3-Bis(trimethylsilyl)urea.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N,O-Bis(trimethylsilyl)trifluoroacetamide (CAS 21149-38-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1191781-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.