The molecule is a derivative of abieta-7,13-diene having an oxo group on one of the gem-dimethyl groups. It derives from a hydride of an abieta-7,13-diene.
(1R,4aR,4bR,10aR)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carbaldehyde