The molecule is a pentacyclic diterpenoid with formula C31H52O2, originally isolated from the root bark of Tripterygium hypoglaucum. It has a role as a plant metabolite. It is a pentacyclic triterpenoid, a secondary alcohol and an ether. It derives from a hydride of an ursane.
(3S,4aR,6aR,6bS,8aR,11R,12S,12aR,14R,14aR,14bS)-14-methoxy-4,4,6a,6b,8a,11,12,14b-octamethyl-2,3,4a,5,6,7,8,9,10,11,12,12a,14,14a-tetradecahydro-1H-picen-3-ol