The molecule is a pimarane diterpenoid resulting from the oxidation of primary alcohol group of 9beta-pimara-7,15-dien-19-ol to the corresponding carboxylic acid. It is a pimarane diterpenoid and a monocarboxylic acid. It is a conjugate acid of a 9beta-pimara-7,15-dien-19-oate.
(1S,4aR,4bR,7R,10aR)-7-ethenyl-1,4a,7-trimethyl-3,4,4b,5,6,8,10,10a-octahydro-2H-phenanthrene-1-carboxylic acid