5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone

Also known as: 5,7-Dihydroxy-3-methoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one, Myricetin 3,3',4',5'-tetramethyl ether, 3,3',4',5'-Tetramethylmyricetin, Myricetin methylether

5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone (CAS 14585-04-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H18O8 and a molecular weight of 374.34100 g/mol. Key properties include a boiling point of 594.2ºC at 760mmHg, a density of 1.44g/cm3 and a flash point of 214.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14585-04-7
Jingsj CID: J-1000722-4
Molecular Formula: C₁₉H₁₈O₈
Molecular Weight: 374.34100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	594.2ºC at 760mmHg
Density	1.44g/cm3
Flash Point	214.3ºC
Exact Mass	374.10000
PSA	107.59000
LogP	2.90560
Vapor Pressure	1.02E-14mmHg at 25°C
Refractive Index	1.639

Customs & Trade Information

HS Code	2914509090
Summary	HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

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

The CAS number of 5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone is 14585-04-7.

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

5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone has molecular formula C19H18O8 and molecular weight 374.34100 g/mol.

What are the upstream and downstream products of 5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone?

For 5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone, Upstream Products: 2-Methoxy-1-(2,4,6-trihydroxyphenyl)ethanone, Benzoic acid, 3,4,5-trimethoxy-, 1,1'-anhydride, 3,4,5-Trimethoxybenzoic acid.

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. "5,7-Dihydroxy-3,3',4',5'-tetramethoxyflavone (CAS 14585-04-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1000722-4 (accessed 2026-11-09).

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