4',5-Dihydroxyflavone

5,4'-二羟基黄酮

Also known as: 5,4'-Dihydroxyflavone, 5-Hydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one, 4',5-Dihydroxyflavone

4',5-Dihydroxyflavone (CAS 6665-67-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H10O4 and a molecular weight of 254.238 g/mol. It is also known as 5,4'-Dihydroxyflavone and 5-Hydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one. Key properties include a melting point of 239-240ºC, a boiling point of 486.0±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 190.0±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6665-67-4
Jingsj CID: J-40912-6
Molecular Formula: C₁₅H₁₀O₄
Chinese Name: 5,4'-二羟基黄酮
Molecular Weight: 254.238 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	239-240ºC
Boiling Point	486.0±45.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	190.0±22.2 °C

Frequently Asked Questions

What is the CAS number of 4',5-Dihydroxyflavone?

The CAS number of 4',5-Dihydroxyflavone is 6665-67-4.

What are the molecular formula and molecular weight of 4',5-Dihydroxyflavone?

4',5-Dihydroxyflavone has molecular formula C15H10O4 and molecular weight 254.238 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4',5-Dihydroxyflavone (CAS 6665-67-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40912-6 (accessed 2026-10-22).

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