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Quercetin
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Quercetin

  • API034

  • Sophora Japonica L.

  • 98%

  • HPLC

  • Yellowish powder

  • 117-39-5

Availability:

Quercetin Overview 


                               Quercetin 

Product Name

Quercetin Anhydrous

Quercetin dihydrate

CAS NO.

117-39-5

6151-25-3

CAS 

structural formula

C15H10O7

C15H14O9

Quercetin 分子picture

Quercetin dihydrate

Appearance

Yellowish powder/Granule


Source:

Sophora Japonica L.

Specification

98%

Description

Powder & Granule

Test method

HPLC

Related product

Rutin,L-Rhamnose,Troxerutin,Luteolin,Dihydroquercetin,Isoquercetin.

Quercetin is a kind of natural flavonoid compounds, widely existing in the sophora japonica of leguminous plants. It mainly comes from the enzymolysis of rutin in yellow needle crystal, widely used in food, pharmaceutical and nutracuetical industries.our company can offer all product related sophora japonica of leguminous plants.


Quercetin powder

Quercetin Application

Quercetin is widely used in food, pharmaceutical, nutrition and other industries.

Nutraceutical

1. Quercetin has good effect on expectorant, antitussive and antiasthmatic.

2. Quercetin  can Decreasing blood pressure and blood fat.

3. Quercetin can nhancing the resistance of the capillaries and reducing fragility of capillary.

4. Quercetin expanding coronary arteries and increasing coronary blood flow.

Cosmetics

1. Quercetin can prevent the formation of melanin, reduce the number of melanin produced within the cell, and has a good whitening effect.

2. Quercetin can remove hydroxyl radicals, superoxide radicals, and has a strong antioxidant capacity to slow the skin aging.

3. Quercetin has a certain inhibitory effect on E. coli and Staphylococcus aureus, and can be used as a natural anti-corrosion ingredient of cosmetics.



COA I for Quercetin dihydrate

Product name : Quercetin dihydrate                   Batch No.:        HB-ESHUS20220507

Botanical Name : Sophorae Japonica L.              Manufacture date   May. 06th, 2022

Quantity :       700kg                                            Inspection Date:  May. 07th, 2022

CAS  Number:  6151-25-3                                   Expiry date:      May. 05th, 2024

TEST

STANDARD

RESULTS

Appearance

Yellow, crystalline powder

Yellow, crystalline powder

Solubility

Practically insoluble in water

Complies

Soluble in aqueous alkaline sol.

Complies

Melting point

305-315℃

313℃

Identification

Must positive

Complies

Tests

Loss on drying

9.0% to 12.0%

9.8%

Sulphated ash

≤0.5%

0.15%

Mesh size

100% pass 80 mesh

Complies

Heavy Metal

≤10PPM

<10PPM

Cadmium

≤1 PPM

Absent

Lead

≤3 PPM

0.005PPM

Mercury

≤0.1 PPM

0.02PPM

Arsenic

≤1 PPM

Absent

Cesium

≤1 PPM

Absent

Assay (on  dry  product)

≥95%  (HPLC method)

95.8%

Microbiological test

Total plate count

≤1000CFU/g

Complies

Yeast & Mould

≤100CFU/g

Complies

E.Coli

Absent

Absent

Pseudomonas aeruginosa

Absent

Absent

Conclusion: the test results conform to enterprise standard.

Storage: a cool & dry place protected from light, keep drum close when not in use


COA II for Quercetin Anhydrous

Product Name: Quercetin Anhydrous           Batch No.: 20220112

Botanical Name: Sophora Japonica L.           Manufacture Date: Jan. 10th,2022

Quantity: 1000kg                                           Inspection Date: Jan. 12th,2022

CAS Number: 117-39-5                                 Expiry Date: Jan. 09th, 2024

TEST

STANDARD

RESULTS

Appearance

Yellow, crystalline powder

Yellow, crystalline powder

Solubility

Practically insoluble in water

Complies

Soluble in aqueous alkaline sol.

Complies

Melting point

305-315℃

310℃

Identification

Must positive

Complies

Loss on drying

˂4%

2.0%

Sulphated ash

≤0.5%

0.25%

Mesh size

100% pass 80 mesh

Complies

Heavy Metal

≤10PPM

<10PPM

Cadmium

≤1 PPM

Absent

Lead

≤3 PPM

0.01PPM

Mercury

≤0.1 PPM

0.02PPM

Arsenic

≤1 PPM

Absent

Assay (on  dry  product)

≥95%  (HPLC method)

96.2%

Total plate count

≤1000CFU/g

Complies

Yeast & Mould

≤100CFU/g

Complies

E.Coli

Absent

Absent

Salmonella

Absent

Absent

Conclusion: the test results conform to enterprise standard.

Storage: a cool & dry place protected from light, keep drum close when not in use


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