Cyclopentasilane

环戊硅烷

Also known as: 1λ2,2λ2,3λ2,4λ2,5λ2-pentasilolane, CPS, CYCLOPENTANONE-2-CARBONITRILE, Cyclopentasilane Discontinued (Explosive), Pentasilacyclopentane, Pentasilolane, Si5H10, Si5H10: CPS: Cyclopentasilane

Cyclopentasilane (CAS 289-22-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H10Si5 and a molecular weight of 150.50700 g/mol. It is also known as 1λ2,2λ2,3λ2,4λ2,5λ2-pentasilolane, CPS and CYCLOPENTANONE-2-CARBONITRILE. Key property: a boiling point of 80℃(20 mmHg). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
289-22-5
Jingsj CID
J-1347158-9
Molecular Formula
H10Si5
Chinese Name
环戊硅烷
Molecular Weight
150.50700 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point80℃(20 mmHg)

Frequently Asked Questions

What is the CAS number of Cyclopentasilane?

The CAS number of Cyclopentasilane is 289-22-5.

What are the molecular formula and molecular weight of Cyclopentasilane?

Cyclopentasilane has molecular formula H10Si5 and molecular weight 150.50700 g/mol.

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

Last updated:

How to cite: Jingsj. "Cyclopentasilane (CAS 289-22-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1347158-9 (accessed 2026-10-26).

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