Gossypetin

Gossypetin, also known as 3,5,7,8,3',4'-hexahydroxyflavone, is a flavonol, a type of flavonoid. It has been isolated from the flowers and the calyx of Hibiscus sabdariffa (roselle) and exhibits a strong antibacterial activity. The compound has also been found to act as an antagonist of TrkB. Recently it was shown that gossypetin has radioprotective activity.