(4-Ethylphenylethynyl)trimethylsilane

4-乙基三甲基硅乙炔苯

Also known as: (4-ETHYLPHENYLETHYNYL)TRIMETHYLSILANE, 1-Ethyl-4-[2-(trimethylsilyl)ethynyl]benzene, 2-(4-ethylphenyl)ethynyl-trimethylsilane, Benzene, 1-ethyl-4-[2-(trimethylsilyl)ethynyl]-, MFCD05664231, [(4-Ethylphenyl)ethynyl](trimethyl)silane, [2-(4-Ethylphenyl)ethynyl]trimethylsilane

(4-Ethylphenylethynyl)trimethylsilane (CAS 393857-27-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H18Si and a molecular weight of 202.36800 g/mol. It is also known as (4-ETHYLPHENYLETHYNYL)TRIMETHYLSILANE, 1-Ethyl-4-[2-(trimethylsilyl)ethynyl]benzene and 2-(4-ethylphenyl)ethynyl-trimethylsilane. Key properties include a boiling point of 72ºC0.1 mm Hg(lit.), a density of 0.881 g/mL at 25ºC(lit.) and a flash point of 228 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
393857-27-7
Jingsj CID
J-31345-6
Molecular Formula
C13H18Si
Chinese Name
4-乙基三甲基硅乙炔苯
Molecular Weight
202.36800 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point72ºC0.1 mm Hg(lit.)
Density0.881 g/mL at 25ºC(lit.)
Flash Point228 °F

Frequently Asked Questions

What is the CAS number of (4-Ethylphenylethynyl)trimethylsilane?

The CAS number of (4-Ethylphenylethynyl)trimethylsilane is 393857-27-7.

What are the molecular formula and molecular weight of (4-Ethylphenylethynyl)trimethylsilane?

(4-Ethylphenylethynyl)trimethylsilane has molecular formula C13H18Si and molecular weight 202.36800 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(4-Ethylphenylethynyl)trimethylsilane (CAS 393857-27-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31345-6 (accessed 2026-10-23).

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