1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane

1-[二甲基[2-(5-降冰片烯-2-基)乙基]硅氧基]-3,5,7,9,11,13,15-七环戊基五环[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]八硅氧烷

Also known as: PSS-[(dimethyl)[2-(norbornenyl)ethyl]silyloxy]-heptacyclopentyl substituted, Dimethyl(norbornenylethyl)silyloxy-POSS, Dimethyl(norbornenylethyl)silyloxy, 1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, mixture, Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1-[[(2-bicyclo[2.2.1]hept-5-en-2-ylethyl)dimethylsilyl]oxy]-3,5,7,9,11,13,15-heptacyclopentyl-

1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane (CAS 307496-18-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C46H82O13Si9 and a molecular weight of 1095.905 g/mol. It is also known as PSS-[(dimethyl)[2-(norbornenyl)ethyl]silyloxy]-heptacyclopentyl substituted, Dimethyl(norbornenylethyl)silyloxy-POSS and Dimethyl(norbornenylethyl)silyloxy. Key property: a density of 1.2±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
307496-18-0
Jingsj CID
J-50735-0
Molecular Formula
C46H82O13Si9
Chinese Name
1-[二甲基[2-(5-降冰片烯-2-基)乙基]硅氧基]-3,5,7,9,11,13,15-七环戊基五环[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]八硅氧烷
Molecular Weight
1095.905 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Density1.2±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane?

The CAS number of 1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane is 307496-18-0.

What are the molecular formula and molecular weight of 1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane?

1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane has molecular formula C46H82O13Si9 and molecular weight 1095.905 g/mol.

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

Last updated:

How to cite: Jingsj. "1-[dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy]-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane (CAS 307496-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-50735-0 (accessed 2026-10-24).

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