The molecule is a tetracyclic diterpenoid that is 1a,2,5,5a,6,9,10,10a-octahydro-1H-2,8a-methanocyclopenta[a]cyclopropa[e][10]annulen-11-one substituted at positions 5, 5a and 6 by hydroxy groups, positions 1, 1, 7 and 9 by methyl groups, position 4 by a hydroxymethyl group and position 1 by an oxo group (the 1aR,2S,5R,5aR,6S,8aS,9R,10aR diastereomer). It is a tetracyclic diterpenoid and a cyclic terpene ketone.
(1S,4S,5R,6R,9S,10R,12R,14R)-4,5,6-trihydroxy-7-(hydroxymethyl)-3,11,11,14-tetramethyltetracyclo[7.5.1.01,5.010,12]pentadeca-2,7-dien-15-one