The molecule is an abietane diterpenoid lacking the isopropyl substituent with an aromatic C-ring and a hydroxy group at the 12-position. It derives from a hydride of a podocarpane.
(1S,4aS,10aR)-6-hydroxy-1,4a-dimethyl-2,3,4,9,10,10a-hexahydrophenanthrene-1-carboxylic acid