Formula C20H22O9 | Molar mass 406.38 g/mol | |
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Astringin is a stilbenoid. It is the piceatannol glucoside. It can be found in the bark of Picea sitchensis or Picea abies (Norway spruce).
It is also present in Vitis vinifera cells cultures and in wine.
References
Astringin Wikipedia(Text) CC BY-SA