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[name]. English: Quercetin


[different name] : quercetin, it Beijing Nonoxynol 9 Factory Opera, Meletin and Sophretin.


Bk5i3. JPG

[chemical name] : 4 h - 1 - Benzopyran - 4 - one, 2 - (3, 4 - dihydroxyphenyl) - 3, 5, 7 - trihydroxy -


[molecular formula and molecular weight] : C15H10O7:302.23


The physics properties of [] : dihydrate Theobromine Powder is yellow needle crystal (dilute ethanol), in 95-97 ° C to become anhydride, melting point 314 ° C (decomposition). 1 g dissolved in 290 ml of anhydrous ethanol, 23 ml boiling ethanol, soluble in glacial acetic acid, alkaline solution yellow, almost insoluble in water, ethanol solution taste very bitter.


[plant sources] : fagaceae plant Iberian oak Quercus Heme Iron Polypeptide iberica skin and leaves, berberidaceae plant red octagonal lotus Dysosma veitchii (Hemsl. Et Wils.) Fu, st John's wort plant red dry lotus forsythia (hunan) Hypericum ascyron l. all grass, apocynaceae plant kenaf Apocynum lancifolium Rus. Leaves.


[effect] it: this product has a good expectorant, cough, and there was a smooth wheezing effect. In addition to lowering blood pressure, improve blood capillary resistance, reduce capillary fragility, blood fat, expansion of coronary artery, increase coronary blood flow, and so on. Used in the treatment of chronic bronchitis. In patients with coronary heart disease and high blood pressure also have auxiliary therapy effect. Oral LD50 in mice is 160 mg/kg.


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