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pentavinylpentamethylcyclopentasiloxane

Also known as: 1,3,5,7,9-Pentavinyl-1,3,5,7,9-pentamethylcyclopentasiloxane, 2,4,6,8,10-Pentaethenyl-2,4,6,8,10-pentamethylcyclodecanepentasiloxane, 2,4,6,8,10-Pentamethyl-2,4,6,8,10-pentavinyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane, 2,4,6,8,10-pentaethenyl-2,4,6,8,10-pentamethyl-cyclopentasiloxane, 2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinyl-cyclopentasiloxane, 2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane, Cyclopentasiloxane, 2,4,6,8,10-pentaethenyl-2,4,6,8,10-pentamethyl-, Cyclopentasiloxane,2,4,6,8,10-pentaethenyl-2,4,6,8,10-pentamethyl, Einecs 241-712-3, Methylvinylsiloxane cyclic pentamer, Pentamethylpentavinylcyclopentasiloxane

pentavinylpentamethylcyclopentasiloxane (CAS 17704-22-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H30O5Si5 and a molecular weight of 430.823 g/mol. Key properties include a melting point of -140ºC, a boiling point of 307.8±25.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 129.4±23.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17704-22-2
Jingsj CID
J-1408150-6
Molecular Formula
C15H30O5Si5
Molecular Weight
430.823 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-140ºC
Boiling Point307.8±25.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point129.4±23.6 °C
Exact Mass430.093964
PSA46.15000
LogP4.06900
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.459

Frequently Asked Questions

What is the CAS number of pentavinylpentamethylcyclopentasiloxane?

The CAS number of pentavinylpentamethylcyclopentasiloxane is 17704-22-2.

What are the molecular formula and molecular weight of pentavinylpentamethylcyclopentasiloxane?

pentavinylpentamethylcyclopentasiloxane has molecular formula C15H30O5Si5 and molecular weight 430.823 g/mol.

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

Last updated:

How to cite: Jingsj. "pentavinylpentamethylcyclopentasiloxane (CAS 17704-22-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1408150-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.