3,5,7,8,3',4',5'-Heptamethoxyflavone

3,5,7,8,3',4',5'-七甲氧基黄酮

Also known as: Hibiscetin heptamethyl ether, 3,3',4',5,5',7,8-Heptamethoxyflavone, 3,5,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one, 3,5,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)chromen-4-one, 4H-1-Benzopyran-4-one, 3,5,7,8-tetramethoxy-2-(3,4,5-trimethoxyphenyl)-

3,5,7,8,3',4',5'-Heptamethoxyflavone (CAS 21634-52-6) 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. It is also known as Hibiscetin heptamethyl ether, 3,3',4',5,5',7,8-Heptamethoxyflavone and 3,5,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one. Key properties include a boiling point of 621.5±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 269.2±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

21634-52-6

Jingsj CID

J-1956542-2

Molecular Formula

C₂₂H₂₄O₉

Chinese Name

3,5,7,8,3',4',5'-七甲氧基黄酮

Molecular Weight

432.421 g/mol

Category

Ketones

Last updated

8/21/2026