2-Bromo-1-(2,5-dichlorophenyl)ethanone

Also known as: 2-Bromo-2',5'-dichloroacetophenone, 2-Bromo-1-(2,5-dichlorophenyl)ethan-1-one, 2,5-Dichlorophenacyl bromide, 2-Bromo-1-(2,5-dichlorophenyl)ethanone

2-Bromo-1-(2,5-dichlorophenyl)ethanone (CAS 4571-25-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H5BrCl2O and a molecular weight of 267.93500 g/mol. Key properties include a melting point of 33-35ºC, a boiling point of 292.7ºC at 760 mmHg, a density of 1.695g/cm3 and a flash point of 130.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4571-25-9
Jingsj CID: J-1492567-8
Molecular Formula: C₈H₅BrCl₂O
Molecular Weight: 267.93500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	33-35ºC
Boiling Point	292.7ºC at 760 mmHg
Density	1.695g/cm3
Flash Point	130.8ºC
Exact Mass	265.89000
PSA	17.07000
LogP	3.57100
Refractive Index	1.596

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-Bromo-1-(2,5-dichlorophenyl)ethanone?

The CAS number of 2-Bromo-1-(2,5-dichlorophenyl)ethanone is 4571-25-9.

What are the molecular formula and molecular weight of 2-Bromo-1-(2,5-dichlorophenyl)ethanone?

2-Bromo-1-(2,5-dichlorophenyl)ethanone has molecular formula C8H5BrCl2O and molecular weight 267.93500 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. "2-Bromo-1-(2,5-dichlorophenyl)ethanone (CAS 4571-25-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492567-8 (accessed 2026-11-09).

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