Daturaolone is a pentacyclic oleanane triterpenoid, also known as 3-oxo-6-ò-hydroxy-ò-amyrin, found in Datura species such as Datura stramonium and Datura innoxia.
It was isolated for the first time from Solanum arundo.
Daturaolone contains five rings with a ketone group and a hydroxyl group, which may be essential for its bioactivities. The structure was deduced through mass spectroscopy and <sup>1</sup>H NMR spectroscopy.
Daturaolone isolated from Datura metel Linnaeus has been found to have anti-fungal and anti-bacterial activities. When tested against bacterial strains such as Klebsiella pneumoniae and S. aureus, daturaolone was shown to inhibit bacterial growth.