Cyclopropyl(trimethylsilyl)acetylene
Also known as: (Cyclopropylethynyl)(trimethyl)silane, (Cyclopropylethynyl)trimethylsilane, (2-cyclopropylethynyl)trimethylsilane, 2-cyclopropylethynyl(trimethyl)silane, Cyclopropane, [2-(trimethylsilyl)ethynyl]-, Silane, (cyclopropylethynyl)trimethyl- (9CI), TIMTEC-BB SBB009013, TRIMETHYLSILYLETHYNYLCYCLOPROPANE
Cyclopropyl(trimethylsilyl)acetylene (CAS 81166-84-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H14Si and a molecular weight of 138.282 g/mol. Key properties include a boiling point of 129.8±7.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 24.6±10.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 81166-84-9
- Jingsj CID
- J-947614-6
- Molecular Formula
- C8H14Si
- Molecular Weight
- 138.282 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 129.8±7.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 24.6±10.7 °C |
| Exact Mass | 138.086472 |
| LogP | 3.07 |
| Vapor Pressure | 12.2±0.2 mmHg at 25°C |
| Refractive Index | 1.454 |
Frequently Asked Questions
What is the CAS number of Cyclopropyl(trimethylsilyl)acetylene?
The CAS number of Cyclopropyl(trimethylsilyl)acetylene is 81166-84-9.
What are the molecular formula and molecular weight of Cyclopropyl(trimethylsilyl)acetylene?
Cyclopropyl(trimethylsilyl)acetylene has molecular formula C8H14Si and molecular weight 138.282 g/mol.
What are the upstream and downstream products of Cyclopropyl(trimethylsilyl)acetylene?
For Cyclopropyl(trimethylsilyl)acetylene, Upstream Products: Chlorotrimethylsilane, Ethynylcyclopropane, 1-Chloro-5-trimethylsilyl-4-pentyne.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Cyclopropyl(trimethylsilyl)acetylene (CAS 81166-84-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-947614-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.