Cyclopropyl(trimethylsilyl)acetylene

环丙基(三甲基硅基)乙炔

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. It is also known as (Cyclopropylethynyl)(trimethyl)silane, (Cyclopropylethynyl)trimethylsilane and (2-cyclopropylethynyl)trimethylsilane. 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-947614-1
Molecular Formula
C8H14Si
Chinese Name
环丙基(三甲基硅基)乙炔
Molecular Weight
138.282 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point129.8±7.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point24.6±10.7 °C

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.

Data compiled from public chemical databases 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-947614-1 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.