Sophora Japonica Extract Quercetin suppliers Sophora Japonica Extract Quercetin manufacturers Sophora Japonica Extract Quercetin factory free sample

Sophora Japonica Extract Quercetin ,As a natural flavonoid compound widely found in nature, cortin has been extensively studied and has been found to have multiple biological activities, such as antioxidant, antiviral, and anti-inflammatory effects.

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Sophora Japonica Extract Quercetin Introduction

Quercetin– (Sophora japonica extract) -was a hydrolysis product from Rutin which extracted from dried flower buds of Sophora japonica L, by alkali extraction, acid precipitation and purification process, it NLT 98.0% and NMT 102.0% of quercetin, calculated on the anhydrous basis.

Quercetin is a flavonol compound widely distributed in the plant kingdom and has a variety of biological activities. Quercetin can fight against free radicals, complex or capture free radicals to prevent lipid peroxidation in the body; it can directly inhibit tumors and effectively play anti-cancer and anti-cancer effects; it is also effective in antibacterial, anti-inflammatory, anti-allergic, and preventing diabetic complications. Strong biological activity. In addition, quercetin can also lower blood pressure, enhance capillary resistance, reduce capillary fragility, lower blood lipids, expand coronary arteries, increase coronary blood flow, etc. It also has an auxiliary therapeutic effect on patients with coronary heart disease and hypertension.

Product Name Sophora Japonica Extract Quercetin
CAS No 117-39-5
Latin name Sophora japonica L.
Appearance Yellow needle-like crystalline powder
Specifications 95%,98%
Pakage 1kg/bag, 25kg/drum
Storage Moisture-roof and avoid light, sealed storage.
Test Method HPLC,UV

Sophora Japonica Extract Quercetin Physical and Chemical Properties

Sophora japonica extract quercetin ,Yellow powder (methanol), its dihydrate is yellow needle crystal. It becomes anhydrous at 95~97℃, with a melting point of 313~314℃ (decomposition). Soluble in hot ethanol (1:23), cold ethanol (1:300), soluble in methanol, ethyl acetate, glacial acetic acid, pyridine, etc., insoluble in petroleum ether, benzene, ether, chloroform, and almost insoluble in water. Its alkali aqueous solution is yellow, and its ethanol solution has a very bitter taste. Blue fluorescence appears under UV light, the fluorescence changes to yellow-green when AlCl3 ethanol solution is added, and the hydrochloric acid-magnesium powder reaction appears red.

Quercetin is a flavonol compound. Flavonoids mostly exist in the form of glycosides. Due to the different types and positions of the sugars connected, a variety of flavonoid glycosides are formed. The sugars that make up flavonoid glycosides are mostly monosaccharides.Flavonols have poor water solubility, while their glycosides are more soluble in water.


Mainly Specifications of Sophora Japonica Extract Quercetin

Quercetin Powder 95% HPLC
Quercetin Powder 98% UV
Quercetin Granule 95% HPLC
Quercetin dihydrate 95% HPLC


Benefits of Sophora Japonica Extract Quercetin

Quercetin is a kind of natural vitamin P, which has the ability to reduce capillary permeability and antioxidant.
Quercetin is an anti-inflammatory & antiviral agent, has strong inhibit ability on Staphylococcus aureus, E.coli.
Quercetin has strong antitumor activity, which can reduce the proliferation activity of tumor cells.
Quercetin has effects on the central nervous system, analgesia, anti-depression and improve memory.


Typical Specification Sheet of Quercetin 95%

Analysis Items Specifications Methods
A. IR IR spectrum is concordant with spectrum of Quercetin RS <197K>.
B. UV The absorptivity at the maximum at 371nm is 75.5–80.0 <197U>.
C. HPLC Retention time of the sample matches with the standard in HPLC purity test.
Active Ingredients Tests
Quercetin dihydrate (HPLC) ≥95.00 % USP43<621>
Kaempferol ≤0.50% USP43<621>
Individual impurities ≤0.10% USP43<621>
Total Impurities ≤2.00% USP43<621>
Physical Tests
Appearance Yellow crystalline powder Visual
Particle size 98% pass 80 mesh Ch.P 2020 IV<0982>
Water ≤12.00% USP43<921>
Residue on Ignition ≤0.10% USP43<281>
Chemical Tests
Heavy Metals ≤10.00ppm USP43<231>
Pb<Lead> ≤3.00ppm USP43<211>
As<Inorganic arsenic> ≤1.00ppm USP43<251>
Cd<Cadmium> ≤1.00ppm USP43<232>
Hg<Total mercury> ≤0.10ppm USP43<261>
Sulphate ≤1,000ppm Ch.P 2020 IV<0802>
Microbiological Tests
Total Bacterial Counts ≤1,000cfu/g USP43<2021>
Yeasts and Molds ≤100cfu/g USP43<2021>
E. Coli Negative in 1g USP43<2022>
Salmonella Negative in 10g USP43<2022>


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