Piceatannol

Piceatannol is a stilbenoid, a type of phenolic compound.
Piceatannol and its glucoside, astringin, are phenolic compounds found in mycorrhizal and non-mycorrhizal roots of Norway spruces (Picea abies). It can also be found in the seeds of the palm Aiphanes horrida and in Gnetum cleistostachyum. The chemical structure of piceatannol was established by Cunningham et al. as being an analog of resveratrol.