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Professional Extract Manufacturer Sophora Japonica Extract 95% 98% Quercetin

Professional Extract Manufacturer Sophora Japonica Extract 95% 98% Quercetin

To treat allergies Anti-inflammatory and anti-infection To prevent and treat cancer,To treat Cardiovascular disease As an antioxidant, it helps neutralize free radicals, one of the leading causes of aging.soothing, redness-reducing properties

General product information
Place of Origin:China
Brand Name: Willdo
Model Grade:Food grade
Certification:cGMP, FSSC22000, HACCP, HALAL, KOSHER, ISO9001.
CAS NO.:117-39-5
Appearance:Yellow-green Fine powder
Minimum Order Quantity:25kg
Packaging Details:25 KG/DRUM
Delivery Time:Within 7~14 days after confirming the order.
Payment Terms:TT
Supply Ability:200 ton/ year
Sample:Available And Free
Product Name:Sophora Japonica extractLatin Name:Sophora Japonica L
Part Used:Whole flower budExtract Solvent:Ethanol &Water
Country of Origin:ChinaExtract Ratio:/
PhysicalAppearanceYellowish green powderVisual
Melting point305~315℃Thermometer
IdentificationMust positiveTLC
Loss on drying9.0% to 12.0%2g/105℃/5hrs
Sulphated ash≤0.5%2g/600℃/5hrs
Mesh size100% through 80 meshSieve
ChemicalHeavy metals≤10ppmColorimetricmethod
Arsenic(As)≤2ppmAtomic Absorption
Lead(Pb)≤1ppmAtomic Absorption
Cadmium(Cd)≤1ppmAtomic Absorption
Mercury(Hg)≤0. 1ppmAtomic Absorption
Solvent residual≤5000ppmGas Chromatography
AssayQuercetin (on dry basis)≥95.0%HPLC
MicrobialTotal microbacterial count≤10000CFU/gCP2015
Yeast &Mould≤1000CFU/gCP2015
Escherichia Coli presenceNegativeCP2015
ElsePackingPack in paper-drums and two food grade poly bags inside.
Storage conditionStore in a well closed place with constant low temperature and no direct sun light
Shelf lifeThree years when properly stored


  • Reliable

    We have handled chemical.additives for more than 20 years.And enjoy good reputation in the world market for our good quality and reasonable prices.A partner you can trust.

  • Rich resources

    We have two factories which is specialized in zinc sulphate and manganese sulphate.Over 100000tons per year.Ensure sufficient supply for customers

  • A wide range of products

    We are familiar with the domestinc raw material market and are involved in the business of ferrous sulfate,copper sulfate ammonium sulfate,and all Sulphate salts.

  • Strong communication skills and service ethic

    As the agent of factory,our team have same expertise as the factory but stronger communication skills to improve the efficiency of negotiations.