Astringin is a stilbenoid, the 3-β-D-glucoside of piceatannol.[1] It can be found in the bark of Picea sitchensis[2][3] and Picea abies (Norway spruce).[4]
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IUPAC name
3-[(E)-2-(2,3-Dihydroxyphenyl)ethen-1-yl]-5-hydroxyphenyl β-D-glucopyranoside
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Systematic IUPAC name
(2S,3R,4S,5S,6R)-2-{3-[(E)-2-(3,4-Dihydroxyphenyl)ethen-1-yl]-5-hydroxyphenoxy}-6-(hydroxymethyl)oxane-3,4,5-triol | |
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3D model (JSmol)
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ChEBI |
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PubChem CID
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Properties | |
C20H22O9 | |
Molar mass | 406.387 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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It is also present in Vitis vinifera cells cultures[5] and in wine.[6]