Octavinyloctasilasesquioxane
八乙烯基-POSS
Also known as: PSS-Octavinyl substituted, Octavinyl-T8-silsesquioxane, Octa(vinylsilasesquioxane), Pervinyloctasilsesquioxane, Octaethenyl-pentacyclo-[9.5.1.13,9.15,15.17,13]-octasiloxane, Pentacyclo[9.5.1.1.3,9.15,15.17,13]octasiloxane, octaethenyl-, Poly(Vinyl Silsesquioxane), MFCD00217613
Octavinyloctasilasesquioxane (CAS 69655-76-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C16H24O12Si8 and a molecular weight of 633.03900 g/mol. It is also known as PSS-Octavinyl substituted, Octavinyl-T8-silsesquioxane and Octa(vinylsilasesquioxane). Key properties include a melting point of >350ºC, a boiling point of 329.4ºC at 760mmHg, a density of 1.22g/cm3 and a flash point of 148.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 69655-76-1
- Jingsj CID
- J-23179-2
- Molecular Formula
- C16H24O12Si8
- Chinese Name
- 八乙烯基-POSS
- Molecular Weight
- 633.03900 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >350ºC |
|---|---|
| Boiling Point | 329.4ºC at 760mmHg |
| Density | 1.22g/cm3 |
| Flash Point | 148.4ºC |
Frequently Asked Questions
What is the CAS number of Octavinyloctasilasesquioxane?
The CAS number of Octavinyloctasilasesquioxane is 69655-76-1.
What are the molecular formula and molecular weight of Octavinyloctasilasesquioxane?
Octavinyloctasilasesquioxane has molecular formula C16H24O12Si8 and molecular weight 633.03900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Octavinyloctasilasesquioxane (CAS 69655-76-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23179-2 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.