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1-[2-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane

1-[2-(5-降冰片烯-2-基)乙基]-3,5,7,9,11,13,15-七环戊基五环[9.5.1.1^3,9.1^5,15.1^7,13]八硅氧烷

Also known as: Norbornenylethyl-POSS, PSS-(2-(5-norbornen-2-yl)ethyl)-heptacyclopentyl substituted, Pentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane, 1-(2-bicyclo[2.2.1]hept-5-en-2-ylethyl)-3,5,7,9,11,13,15-heptacyclopentyl-, MFCD00799569

1-[2-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane (CAS 188859-53-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C44H76O12Si8 and a molecular weight of 1021.75000 g/mol. It is also known as Norbornenylethyl-POSS, PSS-(2-(5-norbornen-2-yl)ethyl)-heptacyclopentyl substituted and Pentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane, 1-(2-bicyclo[2.2.1]hept-5-en-2-ylethyl)-3,5,7,9,11,13,15-heptacyclopentyl-. Key property: a flash point of 113ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
188859-53-2
Jingsj CID
J-11087-7
Molecular Formula
C44H76O12Si8
Chinese Name
1-[2-(5-降冰片烯-2-基)乙基]-3,5,7,9,11,13,15-七环戊基五环[9.5.1.1^3,9.1^5,15.1^7,13]八硅氧烷
Molecular Weight
1021.75000 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Flash Point113ºC

Frequently Asked Questions

What is the CAS number of 1-[2-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane?

The CAS number of 1-[2-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane is 188859-53-2.

What are the molecular formula and molecular weight of 1-[2-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane?

1-[2-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane has molecular formula C44H76O12Si8 and molecular weight 1021.75000 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-(5-norbornen-2-yl)ethyl]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1^3,9.1^5,15.1^7,13]octasiloxane (CAS 188859-53-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11087-7 (accessed 2026-10-23).

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