[(3,4-Difluorophenyl)ethynyl](trimethyl)silane

3-(3,4-二氟苯基)-2-乙炔三甲基硅烷

Also known as: ((3,4-Difluorophenyl)ethynyl)trimethylsilane, (3,4-Difluorophenyl)ethynyltrimethylsilane, Benzene, 1,2-difluoro-4-[2-(trimethylsilyl)ethynyl]-

[(3,4-Difluorophenyl)ethynyl](trimethyl)silane (CAS 866683-38-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H12F2Si and a molecular weight of 210.295 g/mol. It is also known as ((3,4-Difluorophenyl)ethynyl)trimethylsilane, (3,4-Difluorophenyl)ethynyltrimethylsilane and Benzene, 1,2-difluoro-4-[2-(trimethylsilyl)ethynyl]-. Key properties include a boiling point of 206.4±40.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 78.6±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
866683-38-7
Jingsj CID
J-993228-3
Molecular Formula
C11H12F2Si
Chinese Name
3-(3,4-二氟苯基)-2-乙炔三甲基硅烷
Molecular Weight
210.295 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point206.4±40.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point78.6±27.3 °C

Frequently Asked Questions

What is the CAS number of [(3,4-Difluorophenyl)ethynyl](trimethyl)silane?

The CAS number of [(3,4-Difluorophenyl)ethynyl](trimethyl)silane is 866683-38-7.

What are the molecular formula and molecular weight of [(3,4-Difluorophenyl)ethynyl](trimethyl)silane?

[(3,4-Difluorophenyl)ethynyl](trimethyl)silane has molecular formula C11H12F2Si and molecular weight 210.295 g/mol.

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

Last updated:

How to cite: Jingsj. "[(3,4-Difluorophenyl)ethynyl](trimethyl)silane (CAS 866683-38-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-993228-3 (accessed 2026-10-23).

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