3,5,6,7,3',4',5'-Heptamethoxyflavone

Also known as: Heptamethoxyflavone, 3,3',4',5,5',6,7-Heptamethoxyflavone, 3,5,6,7-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one, 4H-1-Benzopyran-4-one, 3,5,6,7-tetramethoxy-2-(3,4,5-trimethoxyphenyl)-, NSC 684433

3,5,6,7,3',4',5'-Heptamethoxyflavone (CAS 17245-30-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C22H24O9 and a molecular weight of 432.421 g/mol. Key properties include a boiling point of 604.0±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 261.7±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 17245-30-6
Jingsj CID: J-1552187-6
Molecular Formula: C₂₂H₂₄O₉
Molecular Weight: 432.421 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	604.0±55.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	261.7±31.5 °C
Exact Mass	432.142029
PSA	94.82000
LogP	1.95
Vapor Pressure	0.0±1.7 mmHg at 25°C
Refractive Index	1.576

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

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

The CAS number of 3,5,6,7,3',4',5'-Heptamethoxyflavone is 17245-30-6.

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

3,5,6,7,3',4',5'-Heptamethoxyflavone has molecular formula C22H24O9 and molecular weight 432.421 g/mol.

What are the upstream and downstream products of 3,5,6,7,3',4',5'-Heptamethoxyflavone?

For 3,5,6,7,3',4',5'-Heptamethoxyflavone, Upstream Products: Benzoic acid, 3,4,5-trimethoxy-, 1,1'-anhydride, Dimethyl sulfate.

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. "3,5,6,7,3',4',5'-Heptamethoxyflavone (CAS 17245-30-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1552187-6 (accessed 2026-11-09).

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