Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS

三[(环氧丙氧基丙基)二甲基硅氧基]-POSS

Also known as: 3,7,14-tris{[3-(epoxypropoxy)propyl]dimethylsilyloxy}-1,3,5,7,9,11,14-heptacyclopentyltricyclo[7.3.3.15,11]heptasiloxane, Tricyclo[7.3.3.15,11]heptasiloxane, 1,3,5,7,9,11,14-heptacyclopentyl-3,7,14-tris[[dimethyl[3-(2-oxiranylmethoxy)propyl]silyl]oxy]-, Tris[(epoxypropoxypropyl)dimethylsilyloxy], Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS®, Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS(R)

Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS (CAS 307496-38-4) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C59H114O18Si10 and a molecular weight of 1392.38000 g/mol. It is also known as 3,7,14-tris{[3-(epoxypropoxy)propyl]dimethylsilyloxy}-1,3,5,7,9,11,14-heptacyclopentyltricyclo[7.3.3.15,11]heptasiloxane, Tricyclo[7.3.3.15,11]heptasiloxane, 1,3,5,7,9,11,14-heptacyclopentyl-3,7,14-tris[[dimethyl[3-(2-oxiranylmethoxy)propyl]silyl]oxy]- and Tris[(epoxypropoxypropyl)dimethylsilyloxy]. Key property: a flash point of >230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 307496-38-4
Jingsj CID: J-23528-0
Molecular Formula: C₅₉H₁₁₄O₁₈Si₁₀
Chinese Name: 三[(环氧丙氧基丙基)二甲基硅氧基]-POSS
Molecular Weight: 1392.38000 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Flash Point	>230 °F

Frequently Asked Questions

What is the CAS number of Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS?

The CAS number of Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS is 307496-38-4.

What are the molecular formula and molecular weight of Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS?

Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS has molecular formula C59H114O18Si10 and molecular weight 1392.38000 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Tris[(epoxypropoxypropyl)dimethylsilyloxy]-POSS (CAS 307496-38-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23528-0 (accessed 2026-10-24).

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