3,7,4'-Trihydroxyflavone

Also known as: Resokaempferol, 5-Deoxykaempferol, Deoxykaempferol, 5-, 4',7-Dihydroxyflavonol, 3,4',7-Trihydroxyflavone, 7,4'-Dihydroxyflavonol, 3,7-dihydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one

3,7,4'-Trihydroxyflavone (CAS 2034-65-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C15H10O5 and a molecular weight of 270.24 g/mol. Key properties include a melting point of 310-311ºC, a boiling point of 539.7ºC at 760mmHg, a density of 1.579g/cm3 and a flash point of 210.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2034-65-3
Jingsj CID: J-1973763-4
Molecular Formula: C₁₅H₁₀O₅
Molecular Weight: 270.24 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	310-311ºC
Boiling Point	539.7ºC at 760mmHg
Density	1.579g/cm3
Flash Point	210.6ºC
Exact Mass	270.05300
PSA	90.90000
LogP	2.57680
Vapor Pressure	1.76E-12mmHg at 25°C
Refractive Index	1.747

Activity & Biological Data

Additional Information	[1]. Lin CN, et al. Flavonoids with DNA strand-scission activity from Rhus javanica var. roxburghiana. Fitoterapia. 2008 Jan;79(1):32-6. Epub 2007 Aug 9.

Customs & Trade Information

HS Code	2914501900
Summary	2914501900 other ketone-phenols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,7,4'-Trihydroxyflavone?

The CAS number of 3,7,4'-Trihydroxyflavone is 2034-65-3.

What are the molecular formula and molecular weight of 3,7,4'-Trihydroxyflavone?

3,7,4'-Trihydroxyflavone has molecular formula C15H10O5 and molecular weight 270.24 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3,7,4'-Trihydroxyflavone (CAS 2034-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973763-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.