Tetrahydro-2H-thiopyran-3-one

四氢-2H-噻喃-3-酮

Also known as: 3-Thianone, Thian-3-one, Tetrahydrothiopyran-3-one, 3-Thiacyclohexanone, 1-Thiacyclohexan-3-one, 3-Oxotetrahydrothiopyran, 3-Oxothiacyclohexane, 5-Oxotetrahydrothiopyran, Dihydro-2H-thiopyran-3(4H)-one

Tetrahydro-2H-thiopyran-3-one (CAS 19090-03-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H8OS and a molecular weight of 116.18100 g/mol. It is also known as 3-Thianone, Thian-3-one and Tetrahydrothiopyran-3-one. Key properties include a boiling point of 195.2ºC at 760 mmHg, a density of 1.134g/cm3 and a flash point of 85.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19090-03-0
Jingsj CID
J-1575793-7
Molecular Formula
C5H8OS
Chinese Name
四氢-2H-噻喃-3-酮
Molecular Weight
116.18100 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point195.2ºC at 760 mmHg
Density1.134g/cm3
Flash Point85.3ºC

Frequently Asked Questions

What is the CAS number of Tetrahydro-2H-thiopyran-3-one?

The CAS number of Tetrahydro-2H-thiopyran-3-one is 19090-03-0.

What are the molecular formula and molecular weight of Tetrahydro-2H-thiopyran-3-one?

Tetrahydro-2H-thiopyran-3-one has molecular formula C5H8OS and molecular weight 116.18100 g/mol.

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

Last updated:

How to cite: Jingsj. "Tetrahydro-2H-thiopyran-3-one (CAS 19090-03-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1575793-7 (accessed 2026-10-26).

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