2,2-Dihydroxy-1-(thiophen-2-yl)ethanone

2-噻吩乙二醛水合物

Also known as: 2-Thiopheneglyoxal hydrate, 2,2-Dihydroxy-1-(2-thienyl)ethanone, 2,2-Dihydroxy-1-(thiophen-2-yl)ethan-1-one, 2-Thienylglyoxal monohydrate, 2-Thiophenylglyoxal hydrate, Ethanone, 2,2-dihydroxy-1-(2-thienyl)-, tiofene-2-gliossale idrato, Zinc04204386

2,2-Dihydroxy-1-(thiophen-2-yl)ethanone (CAS 138380-43-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6O3S and a molecular weight of 158.17500 g/mol. It is also known as 2-Thiopheneglyoxal hydrate, 2,2-Dihydroxy-1-(2-thienyl)ethanone and 2,2-Dihydroxy-1-(thiophen-2-yl)ethan-1-one. Key properties include a boiling point of 309.1ºC at 760 mmHg and a flash point of 140.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
138380-43-5
Jingsj CID
J-1070163-8
Molecular Formula
C6H6O3S
Chinese Name
2-噻吩乙二醛水合物
Molecular Weight
158.17500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point309.1ºC at 760 mmHg
Flash Point140.7ºC

Frequently Asked Questions

What is the CAS number of 2,2-Dihydroxy-1-(thiophen-2-yl)ethanone?

The CAS number of 2,2-Dihydroxy-1-(thiophen-2-yl)ethanone is 138380-43-5.

What are the molecular formula and molecular weight of 2,2-Dihydroxy-1-(thiophen-2-yl)ethanone?

2,2-Dihydroxy-1-(thiophen-2-yl)ethanone has molecular formula C6H6O3S and molecular weight 158.17500 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2-Dihydroxy-1-(thiophen-2-yl)ethanone (CAS 138380-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1070163-8 (accessed 2026-10-26).

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