1-(3,4-Dibromothiophen-2-yl)ethanone

1-(3,4-二溴噻吩-2-基)乙酮

Also known as: 1-(3,4-Dibromo-2-thienyl)-1-ethanone, Ethanone, 1-(3,4-dibromo-2-thienyl)-, 2-Acetyl-3,4-dibromothiophene, 1-(3,4-Dibromothien-2-yl)ethanone, 1-(3,4-Dibromothiophen-2-yl)ethan-1-one

1-(3,4-Dibromothiophen-2-yl)ethanone (CAS 57681-57-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4Br2OS and a molecular weight of 283.96800 g/mol. It is also known as 1-(3,4-Dibromo-2-thienyl)-1-ethanone, Ethanone, 1-(3,4-dibromo-2-thienyl)- and 2-Acetyl-3,4-dibromothiophene. Key properties include a melting point of 78-80ºC, a boiling point of 345.8ºC at 760mmHg, a density of 1.988g/cm3 and a flash point of 162.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
57681-57-9
Jingsj CID
J-874766-8
Molecular Formula
C6H4Br2OS
Chinese Name
1-(3,4-二溴噻吩-2-基)乙酮
Molecular Weight
283.96800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point78-80ºC
Boiling Point345.8ºC at 760mmHg
Density1.988g/cm3
Flash Point162.9ºC

Frequently Asked Questions

What is the CAS number of 1-(3,4-Dibromothiophen-2-yl)ethanone?

The CAS number of 1-(3,4-Dibromothiophen-2-yl)ethanone is 57681-57-9.

What are the molecular formula and molecular weight of 1-(3,4-Dibromothiophen-2-yl)ethanone?

1-(3,4-Dibromothiophen-2-yl)ethanone has molecular formula C6H4Br2OS and molecular weight 283.96800 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(3,4-Dibromothiophen-2-yl)ethanone (CAS 57681-57-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-874766-8 (accessed 2026-10-22).

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