The molecule is a 6-isopropenyl-4,4a-dimethyl-2,3,4,4a,5,6,7,8-octahydronaphthalen-2-ol that is (-)-4-epi-eremophilene in which the 2-pro-R hydrogen has been replaced by a hydroxy group. It derives from a (-)-4-epi-eremophilene.
(2R,4R,4aR,6R)-4,4a-dimethyl-6-prop-1-en-2-yl-3,4,5,6,7,8-hexahydro-2H-naphthalen-2-ol