5,7-Dimethoxyflavone

5,7-二甲氧基黄酮

Also known as: Chrysin dimethylether, Chrysin 5,7-dimethyl ether, Dimethylchrysin, 5,7-dimethoxy-2-phenyl-4H-chromen-4-one, 5,7-Dimethoxy-2-phenyl-4H-1-benzopyran-4-one, Chrysin DME

5,7-Dimethoxyflavone (CAS 21392-57-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C17H14O4 and a molecular weight of 282.291 g/mol. It is also known as Chrysin dimethylether, Chrysin 5,7-dimethyl ether and Dimethylchrysin. Key properties include a melting point of 150-152ºC, a boiling point of 476.6±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 213.4±28.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21392-57-4
Jingsj CID
J-1955557-7
Molecular Formula
C17H14O4
Chinese Name
5,7-二甲氧基黄酮
Molecular Weight
282.291 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point150-152ºC
Boiling Point476.6±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point213.4±28.8 °C

Frequently Asked Questions

What is the CAS number of 5,7-Dimethoxyflavone?

The CAS number of 5,7-Dimethoxyflavone is 21392-57-4.

What are the molecular formula and molecular weight of 5,7-Dimethoxyflavone?

5,7-Dimethoxyflavone has molecular formula C17H14O4 and molecular weight 282.291 g/mol.

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

Last updated:

How to cite: Jingsj. "5,7-Dimethoxyflavone (CAS 21392-57-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1955557-7 (accessed 2026-10-24).

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