2-acetyl-3-hydroxythiophene

3-羟基-2-噻吩乙酮

Also known as: 1-(3-Hydroxy-2-thienyl)ethanone, 1-(3-Hydroxythiophen-2-yl)ethanone, 1-(3-hydroxy-2-thiophenyl)ethanone, 1-(3-hydroxythiophen-2-yl)ethan-1-one, 3-Hydroxy-2-thienyl methyl ketone, Ethanone, 1-(3-hydroxy-2-thienyl)-, Thioisomaltol, thioisomaltol

2-acetyl-3-hydroxythiophene (CAS 5556-07-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6O2S and a molecular weight of 142.17600 g/mol. It is also known as 1-(3-Hydroxy-2-thienyl)ethanone, 1-(3-Hydroxythiophen-2-yl)ethanone and 1-(3-hydroxy-2-thiophenyl)ethanone. Key properties include a boiling point of 251.806ºC at 760 mmHg, a density of 1.306g/cm3 and a flash point of 106.089ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5556-07-0
Jingsj CID
J-853553-9
Molecular Formula
C6H6O2S
Chinese Name
3-羟基-2-噻吩乙酮
Molecular Weight
142.17600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point251.806ºC at 760 mmHg
Density1.306g/cm3
Flash Point106.089ºC

Frequently Asked Questions

What is the CAS number of 2-acetyl-3-hydroxythiophene?

The CAS number of 2-acetyl-3-hydroxythiophene is 5556-07-0.

What are the molecular formula and molecular weight of 2-acetyl-3-hydroxythiophene?

2-acetyl-3-hydroxythiophene has molecular formula C6H6O2S and molecular weight 142.17600 g/mol.

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

Last updated:

How to cite: Jingsj. "2-acetyl-3-hydroxythiophene (CAS 5556-07-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-853553-9 (accessed 2026-10-23).

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