Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl-

3,5-双(氯甲基)辛甲基硅烷

Also known as: 3,5-bis-(Chloromethyl)octamethyltetrasiloxane, 3,5-Bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyltetrasiloxane, 3,5-Bis-chlormethyl-1,1,1,3,5,7,7,7-octamethyl-tetrasiloxan, 3,5-bis-chloromethyl-1,1,1,3,5,7,7,7-octamethyl-tetrasiloxane, chloromethyl-(chloromethyl-methyl-trimethylsilyloxysilyl)oxy-methyl-trimethylsilyloxysilane

Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl- (CAS 17988-79-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H28Cl2O3Si4 and a molecular weight of 379.576 g/mol. It is also known as 3,5-bis-(Chloromethyl)octamethyltetrasiloxane, 3,5-Bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyltetrasiloxane and 3,5-Bis-chlormethyl-1,1,1,3,5,7,7,7-octamethyl-tetrasiloxan. Key properties include a melting point of -77ºC, a boiling point of 284.6±50.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 105.3±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17988-79-3
Jingsj CID
J-1446737-2
Molecular Formula
C10H28Cl2O3Si4
Chinese Name
3,5-双(氯甲基)辛甲基硅烷
Molecular Weight
379.576 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-77ºC
Boiling Point284.6±50.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point105.3±22.2 °C

Frequently Asked Questions

What is the CAS number of Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl-?

The CAS number of Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl- is 17988-79-3.

What are the molecular formula and molecular weight of Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl-?

Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl- has molecular formula C10H28Cl2O3Si4 and molecular weight 379.576 g/mol.

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

Last updated:

How to cite: Jingsj. "Tetrasiloxane, 3,5-bis(chloromethyl)-1,1,1,3,5,7,7,7-octamethyl- (CAS 17988-79-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1446737-2 (accessed 2026-10-22).

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