Hyperoside

St John's wort glycosides, also known as quercetin - 3 - O - beta - D - pyran galactose glucoside.
Belong to the flavonol glycosides compound, is a kind of organic compounds, chemical formula for C21H20O12.
Soluble in ethanol, methanol, acetone and pyridine, usually under the condition of stable properties.
Yuan for quercetin, sugar base for pyran galactose, by quercetin 3 O atoms are connected by the beta glycosidic bond with sugar.
St John's wort is widely dispersed, have anti-inflammatory, spasmolysis, diuresis, cough, step-down, lower cholesterol, protein assimilation, local pain and ZhongShu Town and protective effects on cardiovascular and cerebrovascular a variety of physiological activity, is a kind of important natural products.