3-Methoxy-2-methyl-4H-pyran-4-one

3-甲氧基-2-甲基-4H-吡喃-4-酮

Also known as: 2-Methyl-3-methoxy-4H-pyran-4-one, 2-methyl-3-methoxy-4-pyrone, 2-methyl-3-methoxy-pyranone, 3-methoxy-2-methyl-4-pyranone, 3-methoxy-2-methyl-4-pyrone, 3-methoxy-2-methylpyran-4-one, Pantoprazole Impurity 40, MFCD14553191

3-Methoxy-2-methyl-4H-pyran-4-one (CAS 4780-14-7) 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 2-Methyl-3-methoxy-4H-pyran-4-one, 2-methyl-3-methoxy-4-pyrone and 2-methyl-3-methoxy-pyranone. Key properties include a boiling point of 279.6ºC at 760 mmHg, a density of 1.14g/cm3 and a flash point of 113.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4780-14-7
Jingsj CID
J-1125048-1
Molecular Formula
C7H8O3
Chinese Name
3-甲氧基-2-甲基-4H-吡喃-4-酮
Molecular Weight
140.13700 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point279.6ºC at 760 mmHg
Density1.14g/cm3
Flash Point113.6ºC

Frequently Asked Questions

What is the CAS number of 3-Methoxy-2-methyl-4H-pyran-4-one?

The CAS number of 3-Methoxy-2-methyl-4H-pyran-4-one is 4780-14-7.

What are the molecular formula and molecular weight of 3-Methoxy-2-methyl-4H-pyran-4-one?

3-Methoxy-2-methyl-4H-pyran-4-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. "3-Methoxy-2-methyl-4H-pyran-4-one (CAS 4780-14-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1125048-1 (accessed 2026-10-22).

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