Quercetin Powder

Form: Powder
Variety: Quercetin
Part: Seed
Extraction Type: Solvent Extraction
Packaging: Drum, Plastic Container

Natural Sophora Japonica Extract Powder Quercetin 98%

Quercetin, also known as quercetin, quercetin, is soluble in glacial acetic acid, yellow in alkaline solution, almost insoluble in water, and bitter in alcohol solution.It has good expectorant and antitussive effects and has a certain antiasthmatic effect. In addition, quercetin powder also lowers blood pressure, enhances capillary resistance, reduces capillary fragility, lowers blood lipids, dilatation of coronary arteries, and increases coronary blood flow. Quercetin powder is used for the treatment of chronic bronchitis.

 Product Name:  Quercetin
 Botanical Source:   Sophora Japonica Extract
 Spec./Purity:   1.Quercetin 95% HPLC
 2:Quercetin 98% UV,
 Appearance:   Light Yellow Fine Powder
 Active Ingredients.:  Quercetin
 Partical size:  100% pass 80 mesh
 Shelf Life:  2 Years

Product Function  

Quercetin dihydrate is a powerful immune enhancer and antioxidant, and a flavonol that supports heart health and cardiovascular function. It can promote healthy breathing, support the kidneys, and benefit the prostate. Quercetin dihydrate can also support healthy metabolism and help strengthen immune function. An anti-inflammatory pads help reduce the release of histamine, which is a compound released by cells in allergic and inflammatory reactions. It then helps reduce the pain and discomfort associated with inflammation

*Antioxidant, support healthy aging

*Can enhance immune function

*Reduce fatigue and improve athletic performance

*Promote cardiovascular and heart health

*Support breathing function

*Improve metabolic function

*Help support a healthy bladder

*May benefit prostate health


Product Application 

1. Quercetin powder is mainly used in oils, beverages, cold drinks and meat products.

2. Healthcare supplement


Certificate of Analysis 
Item Specification Results Test Method
Appearance Yellow powder Complies Visual
Identification Must positive Positive Infrared Absorption
Melting point 305—315 312 Melting point Apparatus
Particle size 95% pass through Sieve # 80 mesh Complies CP2015
Bulk density ≥0.20gm/cc 0.23gm/cc CP2015
Tapped Density ≥0.30gm/cc 0.35gm/cc CP2015
Heavy metals ≤10ppm <10ppm Atomic Absorption
-Arsenic(As) ≤2ppm 0.35ppm Atomic Absorption
-Lead (Pb) ≤2ppm 0.42ppm Atomic Absorption
-Mercury(Hg) ≤1ppm 0.05ppm Atomic Absorption
-Cadmium(Cd) ≤1ppm 0.09ppm Atomic Absorption
Sulphated Ash ≤0.30% 0.08% CP2015
Loss on drying ≤12.0% 9.25% 5g/120
Assay by HPLC ≥95.0% 95.12% HPLC
Microbiological test:      
Total plate count ≤1000cfu/g 100cfu/g CP2015
Mildew & Yeast ≤300cfu/g 10cfu/g CP2015
E.Coli Negative Complies CP2015
Salmonella Negative Complies CP2015
Staphylococcus Negative Complies CP2015
Residual Solvent ≤5000mg/kg 105mg/kg GC
Pesticide Screen Not Detected Complies GC
Shelf Life
Packed in paper-drums and two plastic-bags inside.N.W.:25kgs Store in a well-closed containers, in a cool dry area.
Two years if sealed and stored away from direct sun light and heat.
Conclusion The test results conform to Quercetin Dihydrate HPLC 95% standard.


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