描述
Pinosylvin, also known as 5-[(Z)-2-phenylvinyl]benzene-1,3-diol, is a member of the class of compounds known as stilbenes. Stilbenes are organic compounds containing a 1,2-diphenylethylene moiety. Stilbenes (C6-C2-C6 ) are derived from the common phenylpropene (C6-C3) skeleton building block. The introduction of one or more hydroxyl groups to a phenyl ring lead to stilbenoids. Pinosylvin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Pinosylvin can be found in beer and grape wine, which makes pinosylvin a potential biomarker for the consumption of these food products. Pinosylvin is a pre-infectious stilbenoid toxin (i.e. synthesized prior to infection), contrary to phytoalexins which are synthesized during infection. It is present in the heartwood of Pinaceae. It is a fungitoxin protecting the wood from fungal infection. It is also found in Gnetum cleistostachyum .