1,3,7-Trihydroxy-2-prenylxanthone

1,3,7-三羟基-2-异戊烯基氧杂蒽酮

Also known as: 1,3,7-Trihydroxy-2-(3-methyl-2-butenyl)-9H-xanthene-9-one, 1,3,7-Trihydroxy-2-(3-methyl-2-butenyl)xanthone, 1,3,7-Trihydroxy-2-(3-methylbut-2-en-1-yl)-9H-xanthen-9-one, 2-(3,3-Dimethylallyl)-1,3,7-trihydroxyxanthone, Isombarraxanthone, iso-Mbarraxanthone

1,3,7-Trihydroxy-2-prenylxanthone (CAS 20245-39-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C18H16O5 and a molecular weight of 312.317 g/mol. It is also known as 1,3,7-Trihydroxy-2-(3-methyl-2-butenyl)-9H-xanthene-9-one, 1,3,7-Trihydroxy-2-(3-methyl-2-butenyl)xanthone and 1,3,7-Trihydroxy-2-(3-methylbut-2-en-1-yl)-9H-xanthen-9-one. Key properties include a boiling point of 576.2±39.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 214.5±20.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

20245-39-0

Jingsj CID

J-1957400-6

Molecular Formula

C₁₈H₁₆O₅

Chinese Name

1,3,7-三羟基-2-异戊烯基氧杂蒽酮

Molecular Weight

312.317 g/mol

Category

Ketones

Last updated

8/21/2026