Octakis(dimethylsiloxy)-T8-silsequioxane

二甲基硅烷基笼形聚倍半硅氧烷

Also known as: 1,3,5,7,9,11,13,15-Octakis(dimethylsilyloxy)pentacyclo[9.5.1.1(3,9).1(5,15).1(7,13)]octasiloxane, Octakis(dimethylsilyloxy)octasilsesquioxane, PSS-Octakis(dimethylsilyloxy) substituted, Poly(hydridosilsesquioxane)-polymeric T8 with all silicons dimethylsiloxy substituted, MFCD01324108

Octakis(dimethylsiloxy)-T8-silsequioxane (CAS 125756-69-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C16H56O20Si16 and a molecular weight of 1017.97000 g/mol. It is also known as 1,3,5,7,9,11,13,15-Octakis(dimethylsilyloxy)pentacyclo[9.5.1.1(3,9).1(5,15).1(7,13)]octasiloxane, Octakis(dimethylsilyloxy)octasilsesquioxane and PSS-Octakis(dimethylsilyloxy) substituted. Key properties include a melting point of 250ºC (dec.), a boiling point of 470.2ºC at 760 mmHg and a flash point of 238.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
125756-69-6
Jingsj CID
J-40163-4
Molecular Formula
C16H56O20Si16
Chinese Name
二甲基硅烷基笼形聚倍半硅氧烷
Molecular Weight
1017.97000 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point250ºC (dec.)
Boiling Point470.2ºC at 760 mmHg
Flash Point238.2ºC

Frequently Asked Questions

What is the CAS number of Octakis(dimethylsiloxy)-T8-silsequioxane?

The CAS number of Octakis(dimethylsiloxy)-T8-silsequioxane is 125756-69-6.

What are the molecular formula and molecular weight of Octakis(dimethylsiloxy)-T8-silsequioxane?

Octakis(dimethylsiloxy)-T8-silsequioxane has molecular formula C16H56O20Si16 and molecular weight 1017.97000 g/mol.

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

Last updated:

How to cite: Jingsj. "Octakis(dimethylsiloxy)-T8-silsequioxane (CAS 125756-69-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40163-4 (accessed 2026-10-23).

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