4-Hydroxy-2H-thiochromen-2-one

4-羟基-1-硫代香豆素

Also known as: 4-Hydroxy-2H-1-benzothiopyran-2-one, 2-hydroxythiochromen-4-one, 4-Hydroxylthiocoumarin, 4-Hydroxy thiocoumarin, 4-Hydroxythiocoumarin, 1-thio-4-hydroxycoumarin, AKOS AU-SVL-37-03, CHEMBRDG-BB 5102960

4-Hydroxy-2H-thiochromen-2-one (CAS 16854-67-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H6O2S and a molecular weight of 178.208 g/mol. It is also known as 4-Hydroxy-2H-1-benzothiopyran-2-one, 2-hydroxythiochromen-4-one and 4-Hydroxylthiocoumarin. Key properties include a boiling point of 304.9±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 138.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16854-67-4
Jingsj CID
J-1081624-2
Molecular Formula
C9H6O2S
Chinese Name
4-羟基-1-硫代香豆素
Molecular Weight
178.208 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point304.9±42.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point138.2±27.9 °C

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-2H-thiochromen-2-one?

The CAS number of 4-Hydroxy-2H-thiochromen-2-one is 16854-67-4.

What are the molecular formula and molecular weight of 4-Hydroxy-2H-thiochromen-2-one?

4-Hydroxy-2H-thiochromen-2-one has molecular formula C9H6O2S and molecular weight 178.208 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Hydroxy-2H-thiochromen-2-one (CAS 16854-67-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1081624-2 (accessed 2026-10-22).

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