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White Willow Bark extract Source:bark of weeping willow Appearance: yellow powder Molecular formula:C13H18O7 Effective role: Salicylaldehyde glycosides in vivo after oral hydrolysis, oxidation into Salicylaldehyde alcohol, salicylic acid, salicylic glycosides are antipyretic, analgesic, Antirheumatic. 4-10% of the solution is local anesthesia, there is bitterness Soa role Sheep export the goods within the injection significantly increased saliva secretion and chewing movement has played the role assist digestion. Qufeng, diuretic, analgesic and reduces swelling, governance Fengshibitong, gonorrhea, gonorrhea, urinary passageway, infectious hepatitis, the wind swelling, boils, erysipelas, tooth caries, swollen gums. Inspection method:HPLC