1,2-Bis(methyldimethoxysilyl)ethane

1,2-双(甲基二甲氧基硅基)乙烷

Also known as: 1,2-bis(dimethoxymethylsilyl)ethane, 2,2,5,5-Tetramethoxy-2,5-disilahexane, Ethylenebis(dimethoxymethylsilane), bis(dimethoxymethylsilyl)ethane

1,2-Bis(methyldimethoxysilyl)ethane (CAS 98789-40-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H22O4Si2 and a molecular weight of 238.42900 g/mol. It is also known as 1,2-bis(dimethoxymethylsilyl)ethane, 2,2,5,5-Tetramethoxy-2,5-disilahexane and Ethylenebis(dimethoxymethylsilane). Key properties include a boiling point of 162.3±13.0ºC at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 44.5±20.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
98789-40-3
Jingsj CID
J-1091368-8
Molecular Formula
C8H22O4Si2
Chinese Name
1,2-双(甲基二甲氧基硅基)乙烷
Molecular Weight
238.42900 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point162.3±13.0ºC at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point44.5±20.2ºC

Frequently Asked Questions

What is the CAS number of 1,2-Bis(methyldimethoxysilyl)ethane?

The CAS number of 1,2-Bis(methyldimethoxysilyl)ethane is 98789-40-3.

What are the molecular formula and molecular weight of 1,2-Bis(methyldimethoxysilyl)ethane?

1,2-Bis(methyldimethoxysilyl)ethane has molecular formula C8H22O4Si2 and molecular weight 238.42900 g/mol.

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

Last updated:

How to cite: Jingsj. "1,2-Bis(methyldimethoxysilyl)ethane (CAS 98789-40-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1091368-8 (accessed 2026-10-22).

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