4-Bromobenzoylacetone

Also known as: (4-Bromobenzoyl)acetone, 1-(4-Bromophenyl)-1,3-butanedione, 1-(4-Bromophenyl)butane-1,3-dione

4-Bromobenzoylacetone (CAS 4023-81-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H9BrO2 and a molecular weight of 241.081 g/mol. Key properties include a melting point of 93 °C, a boiling point of 331.7±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 115.3±8.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4023-81-8
Jingsj CID: J-1515213-3
Molecular Formula: C₁₀H₉BrO₂
Molecular Weight: 241.081 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	93 °C
Boiling Point	331.7±22.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	115.3±8.9 °C
Exact Mass	239.978592
PSA	34.14000
LogP	3.28
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.550

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 4-Bromobenzoylacetone?

The CAS number of 4-Bromobenzoylacetone is 4023-81-8.

What are the molecular formula and molecular weight of 4-Bromobenzoylacetone?

4-Bromobenzoylacetone has molecular formula C10H9BrO2 and molecular weight 241.081 g/mol.

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. "4-Bromobenzoylacetone (CAS 4023-81-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515213-3 (accessed 2026-11-09).

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