5,7,3',4',5'-Pentamethoxyflavone

5,7,3',4',5'-五甲氧基黄酮

Also known as: 3',4',5',5,7-Pentamethoxyflavone, 5,7-Dimethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one, 3',4',5,5',7-Pentamethoxyflavone, Tricetin-3',4',5',5,7-pentamethylether, 3',4',5',5,7-Pentamethoxyflavone ,98%

5,7,3',4',5'-Pentamethoxyflavone (CAS 53350-26-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C20H20O7 and a molecular weight of 372.36900 g/mol. It is also known as 3',4',5',5,7-Pentamethoxyflavone, 5,7-Dimethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one and 3',4',5,5',7-Pentamethoxyflavone. Key properties include a melting point of 198-200ºC, a boiling point of 554.4ºC at 760mmHg, a density of 1.244g/cm3 and a flash point of 243.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 53350-26-8
Jingsj CID: J-1972708-4
Molecular Formula: C₂₀H₂₀O₇
Chinese Name: 5,7,3',4',5'-五甲氧基黄酮
Molecular Weight: 372.36900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	198-200ºC
Boiling Point	554.4ºC at 760mmHg
Density	1.244g/cm3
Flash Point	243.5ºC

Frequently Asked Questions

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

The CAS number of 5,7,3',4',5'-Pentamethoxyflavone is 53350-26-8.

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

5,7,3',4',5'-Pentamethoxyflavone has molecular formula C20H20O7 and molecular weight 372.36900 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. "5,7,3',4',5'-Pentamethoxyflavone (CAS 53350-26-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1972708-4 (accessed 2026-10-22).

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