4-Hydroxy-3,5-dimethyl-5H-thiophen-2-one

4-羟基-3,5-二甲基-5H-噻吩-2-酮

Also known as: 4-Hydroxy-3,5-dimethylthiophen-2(5H)-one, 5-Hydroxy-2,4-dimethylthiophen-3(2H)-one

4-Hydroxy-3,5-dimethyl-5H-thiophen-2-one (CAS 95603-70-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8O2S and a molecular weight of 144.19200 g/mol. It is also known as 4-Hydroxy-3,5-dimethylthiophen-2(5H)-one and 5-Hydroxy-2,4-dimethylthiophen-3(2H)-one. Key properties include a boiling point of 261.5ºC at 760 mmHg, a density of 1.299g/cm3 and a flash point of 111.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
95603-70-6
Jingsj CID
J-1015748-6
Molecular Formula
C6H8O2S
Chinese Name
4-羟基-3,5-二甲基-5H-噻吩-2-酮
Molecular Weight
144.19200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point261.5ºC at 760 mmHg
Density1.299g/cm3
Flash Point111.9ºC

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-3,5-dimethyl-5H-thiophen-2-one?

The CAS number of 4-Hydroxy-3,5-dimethyl-5H-thiophen-2-one is 95603-70-6.

What are the molecular formula and molecular weight of 4-Hydroxy-3,5-dimethyl-5H-thiophen-2-one?

4-Hydroxy-3,5-dimethyl-5H-thiophen-2-one has molecular formula C6H8O2S and molecular weight 144.19200 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-3,5-dimethyl-5H-thiophen-2-one (CAS 95603-70-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1015748-6 (accessed 2026-10-24).

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