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      Quercetin
      Quercetin
      Source: Dry flower buds from Sophora japonica L., prepared from enzymatic hydrolysis of Rutin.
      Active Ingredient: Quercetin
      CAS NO：117-39-5 
      Molecular Formula：C15H14O9
      Appearance: Yellow powder
      Solubility: Slightly soluble in water. Freely soluble in methanol, alkaline solution, and glacial acetic acid.
      Features: Enzymatic hydrolysis processing with no methanol used in manufacturing. The product is healthy and eco-friendly.
      Specifications：
       
      Item
         Results
      Methods
      Assay，%
       
      ≥
      98
      95
      UV          method HPLC     method
      Loss on drying%
      ≤
      12
      KF
      As，  mg/kg
      ≤
      2.0
      GB/T5009. 11
      Pb，  mg/kg
      ≤
      3.0
      GB5009. 12

      Scope of application
      Zhongtian quercetin is produced by enzymatic hydrolysis process and is environmentally friendly.
      Quercetin is mainly used in medicine and health food fields.