1,1,3,3-Tetracyclopentyldichlorodisiloxane

1,1,3,3-四环戊基二氯二硅氧烷

Also known as: 1,3-Dichloro-1,1,3,3-tetracyclopentyldisiloxane, Disiloxane, 1,3-dichloro-1,1,3,3-tetracyclopentyl-, Chloro-[chloro(dicyclopentyl)silyl]oxy-dicyclopentylsilane

1,1,3,3-Tetracyclopentyldichlorodisiloxane (CAS 865811-56-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H36Cl2OSi2 and a molecular weight of 419.57600 g/mol. It is also known as 1,3-Dichloro-1,1,3,3-tetracyclopentyldisiloxane, Disiloxane, 1,3-dichloro-1,1,3,3-tetracyclopentyl- and Chloro-[chloro(dicyclopentyl)silyl]oxy-dicyclopentylsilane. Key properties include a boiling point of 220ºC 1mm, a density of 1.087 g/cm3 and a flash point of 182.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 865811-56-9
Jingsj CID: J-1523865-0
Molecular Formula: C₂₀H₃₆Cl₂OSi₂
Chinese Name: 1,1,3,3-四环戊基二氯二硅氧烷
Molecular Weight: 419.57600 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	220ºC 1mm
Density	1.087 g/cm3
Flash Point	182.2ºC

Frequently Asked Questions

What is the CAS number of 1,1,3,3-Tetracyclopentyldichlorodisiloxane?

The CAS number of 1,1,3,3-Tetracyclopentyldichlorodisiloxane is 865811-56-9.

What are the molecular formula and molecular weight of 1,1,3,3-Tetracyclopentyldichlorodisiloxane?

1,1,3,3-Tetracyclopentyldichlorodisiloxane has molecular formula C20H36Cl2OSi2 and molecular weight 419.57600 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,1,3,3-Tetracyclopentyldichlorodisiloxane (CAS 865811-56-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523865-0 (accessed 2026-10-25).

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