Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate

4-氧代四氢-2H-硫代吡喃-3-甲酸乙酯

Also known as: ethyl 4-oxothiane-3-carboxylate, ethyl 4-oxotetrahydrothiopyran-3-carboxylate, ethyl 4-oxo-tetrahydro-3-thiopyrancarboxylate, 4-ketotetrahydrothiopyran-3-carboxylic acid ethyl ester, ethyl tetrahydrothiopyran-4-one-3-carboxylate, 3-ethoxycarbonylthian-4-one, 2H-Thiopyran-3-carboxylic acid, tetrahydro-4-oxo-, ethyl ester

Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate (CAS 1198-44-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H12O3S and a molecular weight of 188.244 g/mol. It is also known as ethyl 4-oxothiane-3-carboxylate, ethyl 4-oxotetrahydrothiopyran-3-carboxylate and ethyl 4-oxo-tetrahydro-3-thiopyrancarboxylate. Key properties include a boiling point of 299.2±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 142.3±15.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1198-44-3
Jingsj CID
J-10445-4
Molecular Formula
C8H12O3S
Chinese Name
4-氧代四氢-2H-硫代吡喃-3-甲酸乙酯
Molecular Weight
188.244 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point299.2±40.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point142.3±15.4 °C

Frequently Asked Questions

What is the CAS number of Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate?

The CAS number of Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate is 1198-44-3.

What are the molecular formula and molecular weight of Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate?

Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate has molecular formula C8H12O3S and molecular weight 188.244 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate (CAS 1198-44-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10445-4 (accessed 2026-10-23).

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