The molecule is a tetracyclic diterpene consisting of ent-kaurane, where the 6-methyl group is replaced by methylene. It derives from a hydride of an ent-kaurane.
(1S,4R,9R,10R,13R)-5,5,9-trimethyl-14-methylidenetetracyclo[11.2.1.01,10.04,9]hexadecane