2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone

2-溴-1-[4-(2-噻吩基)苯基]-1-乙酮

Also known as: 2-Bromo-1-(4-(thiophen-2-yl)phenyl)ethanone, 2-Bromo-1-(4-thiophen-2-ylphenyl)ethanone, 2-Bromo-1-(thien-2-ylphenyl)ethan-1-one, 2-Bromo-1-[4-(thien-2-yl)phenyl]ethan-1-one, 2-Bromo-4'-(thien-2-yl)acetophenone, 2-(4-Bromoacetylphenyl)thiophene, 4-(Thien-2-yl)phenacyl bromide, 4-(Thien-2-yl)phenacyl bromide 97%, Ethanone, 2-bromo-1-[4-(2-thienyl)phenyl]-

2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone (CAS 128746-80-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H9BrOS and a molecular weight of 281.16800 g/mol. It is also known as 2-Bromo-1-(4-(thiophen-2-yl)phenyl)ethanone, 2-Bromo-1-(4-thiophen-2-ylphenyl)ethanone and 2-Bromo-1-(thien-2-ylphenyl)ethan-1-one. Key properties include a melting point of 115ºC, a boiling point of 367.6ºC at 760mmHg, a density of 1.488g/cm3 and a flash point of 176.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128746-80-5
Jingsj CID
J-1517002-6
Molecular Formula
C12H9BrOS
Chinese Name
2-溴-1-[4-(2-噻吩基)苯基]-1-乙酮
Molecular Weight
281.16800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point115ºC
Boiling Point367.6ºC at 760mmHg
Density1.488g/cm3
Flash Point176.1ºC

Frequently Asked Questions

What is the CAS number of 2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone?

The CAS number of 2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone is 128746-80-5.

What are the molecular formula and molecular weight of 2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone?

2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone has molecular formula C12H9BrOS and molecular weight 281.16800 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Bromo-1-[4-(2-thienyl)phenyl]-1-ethanone (CAS 128746-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517002-6 (accessed 2026-10-22).

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