4-Hydroxy-3,6-dimethyl-2H-pyran-2-one

4-羟基-3,6-二甲基-2H-吡喃-2-酮

Also known as: 3,6-Dimethyl-4-hydroxy-2H-pyran-2-one, 3,6-Dimethyl-4-hydroxy-2-pyrone, 4-Hydroxy-3,6-dimethyl-2-pyrone, MFCD00090424, Methyl triacetic lactone, USF-2550A

4-Hydroxy-3,6-dimethyl-2H-pyran-2-one (CAS 5192-62-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H8O3 and a molecular weight of 140.13700 g/mol. It is also known as 3,6-Dimethyl-4-hydroxy-2H-pyran-2-one, 3,6-Dimethyl-4-hydroxy-2-pyrone and 4-Hydroxy-3,6-dimethyl-2-pyrone. Key properties include a melting point of 209-211ºC, a boiling point of 284ºC at 760mmHg, a density of 1.256g/cm3 and a flash point of 121.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5192-62-1
Jingsj CID
J-1466124-4
Molecular Formula
C7H8O3
Chinese Name
4-羟基-3,6-二甲基-2H-吡喃-2-酮
Molecular Weight
140.13700 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point209-211ºC
Boiling Point284ºC at 760mmHg
Density1.256g/cm3
Flash Point121.7ºC

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-3,6-dimethyl-2H-pyran-2-one?

The CAS number of 4-Hydroxy-3,6-dimethyl-2H-pyran-2-one is 5192-62-1.

What are the molecular formula and molecular weight of 4-Hydroxy-3,6-dimethyl-2H-pyran-2-one?

4-Hydroxy-3,6-dimethyl-2H-pyran-2-one has molecular formula C7H8O3 and molecular weight 140.13700 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-3,6-dimethyl-2H-pyran-2-one (CAS 5192-62-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1466124-4 (accessed 2026-10-25).

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