2-Acetylbenzothiophene

2-乙酰基苯并噻吩

Also known as: 1-(1-Benzothiophen-2-yl)ethanone, 1-(Benzo[b]thiophen-2-yl)ethanone, 1-(Benzo[b]thiophen-2-yl)ethan-1-one, 1-Benzo(b)thien-2-ylethan-1-one, 2-Acetyl-1-benzothiophene, 2-Acetylbenzo[b]thiophene, 2-Acetylthianaphthene, Ethanone, 1-benzo[b]thien-2-yl-, Ketone, benzo[b]thien-2-yl methyl

2-Acetylbenzothiophene (CAS 22720-75-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8OS and a molecular weight of 176.235 g/mol. It is also known as 1-(1-Benzothiophen-2-yl)ethanone, 1-(Benzo[b]thiophen-2-yl)ethanone and 1-(Benzo[b]thiophen-2-yl)ethan-1-one. Key properties include a melting point of 86-88°C, a boiling point of 304.5±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 138.0±20.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22720-75-8
Jingsj CID
J-8727-4
Molecular Formula
C10H8OS
Chinese Name
2-乙酰基苯并噻吩
Molecular Weight
176.235 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point86-88°C
Boiling Point304.5±15.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point138.0±20.4 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Acetylbenzothiophene?

The CAS number of 2-Acetylbenzothiophene is 22720-75-8.

What are the molecular formula and molecular weight of 2-Acetylbenzothiophene?

2-Acetylbenzothiophene has molecular formula C10H8OS and molecular weight 176.235 g/mol.

Is 2-Acetylbenzothiophene hazardous?

2-Acetylbenzothiophene has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2-Acetylbenzothiophene (CAS 22720-75-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8727-4 (accessed 2026-10-23).

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