Aesculetin
（重定向自Cichorigenin）
Aesculetin (also known as esculetin, 6,7-dihydroxycoumarin and cichorigenin) is a derivative of coumarin. It is a natural lactone that derives from the intramolecular cyclization of a cinnamic acid derivative.
It is present in chicory and in many toxic and medicinal plants, in form of glycosides and caffeic acid conjugates.