2-Bromocyclopentanone

2-溴环戊酮

Also known as: 2-Bromocyclopentanone, 2-Bromocyclopentan-1-one, Cyclopentanone, 2-bromo-

2-Bromocyclopentanone (CAS 21943-50-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H7BrO and a molecular weight of 163.012 g/mol. It is also known as 2-Bromocyclopentan-1-one and Cyclopentanone, 2-bromo-. Key properties include a melting point of 165-170℃ (decomp), a boiling point of 189.5±33.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 91.3±12.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21943-50-0
Jingsj CID
J-1496973-9
Molecular Formula
C5H7BrO
Chinese Name
2-溴环戊酮
Molecular Weight
163.012 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165-170℃ (decomp)
Boiling Point189.5±33.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point91.3±12.7 °C

Frequently Asked Questions

What is the CAS number of 2-Bromocyclopentanone?

The CAS number of 2-Bromocyclopentanone is 21943-50-0.

What are the molecular formula and molecular weight of 2-Bromocyclopentanone?

2-Bromocyclopentanone has molecular formula C5H7BrO and molecular weight 163.012 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Bromocyclopentanone (CAS 21943-50-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496973-9 (accessed 2026-10-24).

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