![Molecular structure of 3-[(Trimethylsilyl)ethynyl]benzonitrile (CAS 190771-22-3)](/images/chem_structures_svg/334/190771-22-3.svg)
3-[(Trimethylsilyl)ethynyl]benzonitrile
Also known as: 1-(3-Cyanophenyl)-2-(trimethylsilyl)acetylene, 3-[(Trimethylsilanyl)ethynyl]benzonitrile, 3-(2-Trimethylsilylethynyl)benzonitrile, 3-Trimethylsilanylethynyl-benzonitrile, Benzonitrile, 3-[2-(trimethylsilyl)ethynyl]-, 3-Trimethylsilanethynyl-benzonitrile
3-[(Trimethylsilyl)ethynyl]benzonitrile (CAS 190771-22-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H13NSi and a molecular weight of 199.32400 g/mol. Key properties include a melting point of 42-47ºC, a boiling point of 261.8ºC at 760mmHg, a density of 0.99g/cm3 and a flash point of 112.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 190771-22-3
- Jingsj CID
- J-1046191-3
- Molecular Formula
- C12H13NSi
- Molecular Weight
- 199.32400 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 42-47ºC |
|---|---|
| Boiling Point | 261.8ºC at 760mmHg |
| Density | 0.99g/cm3 |
| Flash Point | 112.1ºC |
| Exact Mass | 199.08200 |
| PSA | 23.79000 |
| LogP | 2.78718 |
| Vapor Pressure | 0.011mmHg at 25°C |
| Refractive Index | 1.521 |
Frequently Asked Questions
What is the CAS number of 3-[(Trimethylsilyl)ethynyl]benzonitrile?
The CAS number of 3-[(Trimethylsilyl)ethynyl]benzonitrile is 190771-22-3.
What are the molecular formula and molecular weight of 3-[(Trimethylsilyl)ethynyl]benzonitrile?
3-[(Trimethylsilyl)ethynyl]benzonitrile has molecular formula C12H13NSi and molecular weight 199.32400 g/mol.
What are the upstream and downstream products of 3-[(Trimethylsilyl)ethynyl]benzonitrile?
For 3-[(Trimethylsilyl)ethynyl]benzonitrile, Upstream Products: 3-Bromobenzonitrile, Trimethylsilylacetylene, 3-Iodobenzonitrile; Downstream Products: 3-Ethynylbenzonitrile, 3-(1H-1,2,3-triazol-4-yl)benzonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-[(Trimethylsilyl)ethynyl]benzonitrile (CAS 190771-22-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1046191-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.