5-Hydroxy-3,6,7,4'-tetramethoxyflavone

Also known as: 5-Hydroxy-3,6,7-trimethoxy-2-(4-methoxyphenyl)chromen-4-one, 4H-1-Benzopyran-4-one, 5-hydroxy-3,6,7-trimethoxy-2-(4-methoxyphenyl)-, 3',4'-Di-O-methyleupalitin, 4'-methylpenduletin, 6-OH-kaempferol 3,6,7,4'-tetramethyl ether, 6-hydroxykaempferol 3,6,7,4'-tetramethyl ether, Penduletin 4'-methyl ether

5-Hydroxy-3,6,7,4'-tetramethoxyflavone (CAS 14787-34-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H18O7 and a molecular weight of 358.34200 g/mol. Key properties include a melting point of 171 °C, a boiling point of 568.8ºC at 760mmHg, a density of 1.36g/cm3 and a flash point of 205.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14787-34-9
Jingsj CID: J-1958504-7
Molecular Formula: C₁₉H₁₈O₇
Molecular Weight: 358.34200 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	171 °C
Boiling Point	568.8ºC at 760mmHg
Density	1.36g/cm3
Flash Point	205.5ºC
Exact Mass	358.10500
PSA	87.36000
LogP	3.20000
Vapor Pressure	1.54E-13mmHg at 25°C
Refractive Index	1.617

Activity & Biological Data

Additional Information	[1]. Kim S, et al. Cytotoxic flavaglines and bisamides from Aglaia edulis. J Nat Prod. 2006 Dec;69(12):1769-75.

Frequently Asked Questions

What is the CAS number of 5-Hydroxy-3,6,7,4'-tetramethoxyflavone?

The CAS number of 5-Hydroxy-3,6,7,4'-tetramethoxyflavone is 14787-34-9.

What are the molecular formula and molecular weight of 5-Hydroxy-3,6,7,4'-tetramethoxyflavone?

5-Hydroxy-3,6,7,4'-tetramethoxyflavone has molecular formula C19H18O7 and molecular weight 358.34200 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. "5-Hydroxy-3,6,7,4'-tetramethoxyflavone (CAS 14787-34-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958504-7 (accessed 2026-11-09).

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