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Sophora Japonica Extract 98% Quercetin

Product Name:Quercetin Sophora japonica extract

Specification:95%98%

Appearance:Yellow Powder

CAS No:117-39-5

EINECS No:204-187-1

Shelf Life:2 Years

Brand Name:Sheerherb

Place of Origin:Shaanxi, China

Application:Healthcare Products

Certificate:ISO9001/EU Organic/USDA

MOQ:1kg

Particle Size:80 Mesh Sieve

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Sophora Japonica Extract (98% Quercetin) Core Benefits:

  • High Purity Extract: Contains 98% Quercetin, high concentration of active ingredients and excellent bioavailability to ensure efficient absorption.
  • Natural plant source: Extracted from Sophora japonica, it is green and safe, with no synthetic chemical residues, in line with international health standards.
  • Strong antioxidant properties: Quercetin is a natural antioxidant, with free radical scavenging ability far exceeding that of vitamins C and E, delaying cellular oxidative damage.
  • Anti-inflammatory and immunomodulation: Inhibit inflammatory factors (e.g. TNF-α, IL-6), relieve chronic inflammation and enhance immunity.
  • Cardiovascular protection: improves vascular elasticity, lowers cholesterol, prevents atherosclerosis, and supports blood pressure health.
  • Anti-allergic effects: stabilizes mast cells, reduces histamine release, relieves hay fever, asthma and other allergic reactions.
  • Antiviral potential: Studies show that quercetin can inhibit the replication of some viruses (e.g. influenza viruses), supporting respiratory health.
  • Wide range of applications: Suitable for pharmaceuticals, nutraceuticals, functional foods and cosmetics (anti-aging, sunscreen formulations).

 
ITEM SPECIFICATION RESULT
Assay by HPLC NLT 95% 95.12%
Appearance Yellow powder Conform
Identification Must positive Conform
Melting point 305℃ ~ 315℃ 312℃
Particle size 95% pass through sieve #80 mesh Conform
Bulk density NLT 0.20 gm/cc 0.23 gm/cc
Tapped density NLT 0.30 gm/cc 0.35 gm/cc
Loss on Drying NMT 12.0% 9.25%
Ash contents NMT 0.30% 0.08%
Heavy Metals (mg/kg)
Pb NMT 1.0 Pass
Hg NMT 0.1 Pass
Cr NMT 0.1 Pass
Microbiological Tests (cfu/g)
Total Plate Count NMT 1,000 Pass
Yeast & Mold NMT 25 Pass
E. Coli. Negative Negative
Staphylococcus Negative Negative
Conclusion The test results conforms to Quercetin dihydrate HP95% standard

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