fraxoside

fraxoside
fraxin frax"in, n. [From {Fraxinus}.] (Chem.) A colorless crystalline substance ({C16H18O10}) found in the bark of the ash ({Fraxinus}), and along with esculin in the bark of the horse-chestnut. It is structurally a derivative of a coumarin glucoside. It shows a delicate blue-green fluorescence in alkaline solutions; -- called also {paviin} and {fraxoside}. --MI-11br/

Syn:

8-([beta]-D-Glucopyranosyloxy)-7-hydroxy-6-methoxy-2H-1-benzopyran-2-one; also, 7,8-dihydroxy-6-methoxy-coumarin-8-[beta]-D-glucoside; fraxetin-8-glucoside. [1913 Webster +PJC]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • C16H18O10 — fraxin frax in, n. [From {Fraxinus}.] (Chem.) A colorless crystalline substance ({C16H18O10}) found in the bark of the ash ({Fraxinus}), and along with esculin in the bark of the horse chestnut. It is structurally a derivative of a coumarin… …   The Collaborative International Dictionary of English

  • fraxin — frax in, n. [From {Fraxinus}.] (Chem.) A colorless crystalline substance ({C16H18O10}) found in the bark of the ash ({Fraxinus}), and along with esculin in the bark of the horse chestnut. It is structurally a derivative of a coumarin glucoside.… …   The Collaborative International Dictionary of English

  • paviin — fraxin frax in, n. [From {Fraxinus}.] (Chem.) A colorless crystalline substance ({C16H18O10}) found in the bark of the ash ({Fraxinus}), and along with esculin in the bark of the horse chestnut. It is structurally a derivative of a coumarin… …   The Collaborative International Dictionary of English

  • FRÊNE — Quatre siècles avant notre ère, Hippocrate et Théophraste conseillaient déjà les feuilles de frêne (Fraxinus excelsia L.; oléacées) dans le rhumatisme et la goutte comme diurétiques. Au IIe siècle, le médecin et poète latin Serenus Samonicus… …   Encyclopédie Universelle

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