2-bromocyclopent-2-en-1-one

Also known as: 2-Cyclopenten-1-one, 2-bromo-, 2-Bromo-2-cyclopenten-1-one, 2-Bromo-2-cyclopentenone, 2-bromo-1-cyclopent-2-enone, 2-bromo-2-cyclopentene-1-one, 2-bromo-cyclopent-2-en-1-one, 2-bromo-cyclopent-2-enone, 2-bromocyclopent-2-enone, bromocyclopentenone

2-bromocyclopent-2-en-1-one (CAS 10481-34-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H5BrO and a molecular weight of 160.99700 g/mol. Key properties include a boiling point of 216°C at 760 mmHg and a flash point of 117°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 10481-34-2
Jingsj CID: J-1500873-8
Molecular Formula: C₅H₅BrO
Molecular Weight: 160.99700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	216°C at 760 mmHg
Flash Point	117°C
Exact Mass	159.95200
PSA	17.07000
LogP	1.62810

Customs & Trade Information

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-bromocyclopent-2-en-1-one?

The CAS number of 2-bromocyclopent-2-en-1-one is 10481-34-2.

What are the molecular formula and molecular weight of 2-bromocyclopent-2-en-1-one?

2-bromocyclopent-2-en-1-one has molecular formula C5H5BrO and molecular weight 160.99700 g/mol.

What are the upstream and downstream products of 2-bromocyclopent-2-en-1-one?

For 2-bromocyclopent-2-en-1-one, Upstream Products: 2-Cyclopenten-1-one, Triethylamine, 2-Hydroxycyclopent-2-en-1-one; Downstream Products: 2-Cyclopenten-1-ol, 2-Pentyl-2-cyclopenten-1-one, 2-Methyl-2-cyclopenten-1-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-bromocyclopent-2-en-1-one (CAS 10481-34-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500873-8 (accessed 2026-11-09).

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