The molecule is a pimarane diterpenoid that is pimarane which has been dehyrogenated to introduce double bonds at positions 7-8 and 15-16, which has a beta-hydrogen in place of an alpha-hydrogen at position 9, and in which one of the hydrogens of the beta-methyl group at position 4 has been replaced by a hydroxy group. It is a pimarane diterpenoid and a primary alcohol.
[(1S,4aR,4bR,7R,10aR)-7-ethenyl-1,4a,7-trimethyl-3,4,4b,5,6,8,10,10a-octahydro-2H-phenanthren-1-yl]methanol