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Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane)

八辛基笼形聚倍半硅氧烷

Also known as: Isooctyl POSS, PSS-Isooctyl substituted, PSS-ISOOCTYL SUBSTITUTED CAGE MIXTURE, Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaoctyl-, isooctyl-pss cage mixture, n=8,10,12

Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane) (CAS 190732-67-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula (C8H17)n(SiO1.5)n and a molecular weight of 1322.468 g/mol. It is also known as Isooctyl POSS, PSS-Isooctyl substituted and PSS-ISOOCTYL SUBSTITUTED CAGE MIXTURE. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
190732-67-3
Jingsj CID
J-1355837-2
Molecular Formula
(C8H17)n(SiO15)n
Chinese Name
八辛基笼形聚倍半硅氧烷
Molecular Weight
1322.468 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane)?

The CAS number of Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane) is 190732-67-3.

What are the molecular formula and molecular weight of Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane)?

Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane) has molecular formula (C8H17)n(SiO1.5)n and molecular weight 1322.468 g/mol.

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

Last updated:

How to cite: Jingsj. "Octaoctyl-POSS (1,3,5,7,9,11,13,15-octaoctylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane) (CAS 190732-67-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1355837-2 (accessed 2026-10-24).

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