(S)-Campholenaldehyde (Campholen aldehyde) is colorless liquid with fresh and woody odor. It is prepared by the isomerization reaction of 2,3-epoxy pinane.
There are optical isomers of campholenic aldehyde. (R)-(+)-campholenic aldehyde is CAS 4501-58-0, and (S)-(-)-campholenic aldehyde is CAS 23727-15-3.
(S)-Campholenaldehyde is an important intermediate in the synthesis of sandalwood fragrances.