1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene

1,5-二甲基-2,4-双[2-(三甲基硅基)乙炔基]苯

Also known as: Benzene, 1,5-dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]-, MFCD29089357, [(4,6-Dimethyl-1,3-phenylene)di-2,1-ethynediyl]bis(trimethylsilane)

1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene (CAS 1379822-08-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H26Si2 and a molecular weight of 298.570 g/mol. It is also known as Benzene, 1,5-dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]-, MFCD29089357 and [(4,6-Dimethyl-1,3-phenylene)di-2,1-ethynediyl]bis(trimethylsilane). Key properties include a melting point of 57 °C, a boiling point of 335.9±42.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 137.7±20.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1379822-08-8
Jingsj CID
J-1326387-0
Molecular Formula
C18H26Si2
Chinese Name
1,5-二甲基-2,4-双[2-(三甲基硅基)乙炔基]苯
Molecular Weight
298.570 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point57 °C
Boiling Point335.9±42.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point137.7±20.9 °C

Frequently Asked Questions

What is the CAS number of 1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene?

The CAS number of 1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene is 1379822-08-8.

What are the molecular formula and molecular weight of 1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene?

1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene has molecular formula C18H26Si2 and molecular weight 298.570 g/mol.

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

Last updated:

How to cite: Jingsj. "1,5-Dimethyl-2,4-bis[2-(trimethylsilyl)ethynyl]benzene (CAS 1379822-08-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326387-0 (accessed 2026-10-26).

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