{{chembox new
|Name=β-Aescin (main component)
|ImageFile=Beta-Aescin.svg
|ImageSize=280
|IUPACName=(2S,3S,4S,5R,6R)-6-{[(3S,4S,4aR,6aR, 6bS,8R,8aR,9R,10R,12aS,14aR,14bR) -9-acetoxy-8-hydroxy-4,8a-bis(hydroxymethyl)-4,6a,6b,11,11, 14b-hexamethyl-10-[2-methyl-1-oxobut-2-enoxy]-1,2,3,4a,5,6,7, 8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy}-4-hydroxy- 3,5-bis{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)- 2-tetrahydropyranyl]oxy}-2-tetrahydropyrancarboxylic acid
|OtherNames=Escin
|Section1=
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}}
Aescin or escin is a mixture of saponins with anti-inflammatory, vasoconstrictor and vasoprotective effects found in Aesculus hippocastanum (the horse chestnut). Aescin is the main active compound in horse chestnut, and is responsible for most of its medicinal properties.