The molecule is a tetracyclic diterpenoid with formula C20H22O4, originally isolated from Tripterygium wilfordii. It has a role as a plant metabolite. It is a gamma-lactone, an organic heterotetracyclic compound, a member of phenols, a tetracyclic triterpenoid, a cyclic terpene ketone and an aromatic ketone.
(3bS,9bR)-6-hydroxy-9b-methyl-7-propan-2-yl-3b,4,10,11-tetrahydro-3H-naphtho[2,1-e][2]benzofuran-1,5-dione