1-[(2R,4aR,8R,8aR)-8-Hydroxy-4a,8-dimethylperhydronaphthalen-2-yl]ethan-1-one

The title compound, C14H24O2, was synthesized from ilicic acid, which was isolated from the aerial part of Inula Viscosa (L) Aiton [or Dittrichia Viscosa (L) Greuter]. The molecule contains two fused six-membered rings, which both display a chair conformation. In the crystal, molecules are linked into chains propagating along the b axis by intermolecular O—H⋯O hydrogen bonds.