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Quick Details

  • Type: Sophora Japonica Extract
  • Form: Powder
  • Part: Flower
  • Extraction Type: Solvent Extraction
  • Packaging: Bottle, Drum, Plastic Container, Vacuum Packed
  • Place of Origin: Shaanxi, China (Mainland)
  • Grade: Top Grade
  • Brand Name: GTL BIOTECH
  • Model Number: GTL BIOTECH Quercetin
  • Product Name: Sophora Japonica Fruit Extract
  • Brand: GTL BIOTECH
  • Appearance: Powder
  • Active Ingredient: Quercetin
  • Color: Yellowish Crystalline Powder
  • Application: Healthcare Product
  • Packing: 25kgs/Drum
  • Sample: Available
  • Shelf Life: 2 Year
  • Solubility: Water Insolubles

Packaging & Delivery

Packaging Details 1 Kg per vacummed bag; 25 Kgs in drum.
Delivery Time During 1~2 working days

Sophora Japonica Extract Quercetin Powder Purity 98% with Low Price

Product Details

Basic Information
Manufacturer Name  Shaanxi GTL Biotech Co.,Ltd 
1. CategoriesNatural Herbal Powder
2. English NameSophora Japonica Extract
3. Active IngredientQuercetin
4. Colour

Yellowish Crystalline Powder

5. Part UsedFlower
6. Original PlaceChina
Product Images
Note: There will be little chromatic aberration when taking the pictures
Brief Introduction

Quercetin is insoluble in water, so the introduction of hydrophilic groups to increase solubility, easy to absorb, thereby enhancing its pharmacological effects. Quercetin can significantly inhibit the role of cancer agents, inhibit the growth of isolated malignant cells, inhibition of Ehrlich ascites cancer cells DNA, RNA and protein synthesis.
Quercetin inhibits platelet aggregation and the release of serotonin (5-HT). Quercetin inhibited the proliferation of platelet aggregation induced by ADP, thrombin and platelet-activating factor (PAF), and the inhibition of PAF was the strongest, and quercetin could significantly inhibit thrombin-induced rabbit platelet 3H-5 -HT release.

Product Analysis
Name Quercetin  
AppearanceYellowish Crystalline Powderconforms
Particle Size95% Through 80 meshconforms
Loss on Drying<2.0%0.86%
Heavy metals
Total Heavy Metals≤10ppmconforms
Microbiological Tests
Total Plate Count≤1000cfu/gconforms
Total Yeast & Mold≤100cfu/gconforms

1. Quercetin has a good expectorant, cough effect, and have a certain role in asthma;
2. Quercetin also lower blood pressure, enhance capillary resistance, reduce capillary fragility;
3. Quercetin can also reduce blood fat, dilate the coronary artery, increase coronary blood flow;

Sample Information

Before bulk order,Sample is available. Customer only pay the delivery cost.
You can send us email for your required product details.

We will send you the Updated Certificate Of Analysis by Email

Packaging & Shipping

Packing Details:

  • 1 Kg by Aluminum Foil Bag; Above 25 Kgs by Paper Drum; 
  • We cooperate with the International Express,likeEMS,DHL,TNT,FEDEX,ARAMEX;
  • Other Air and Sea Shipping for bulk order are also ok for us;
  • For small quantity,we can deliver the goods within 1~2 days after payment;
  • If above 100 Kgs,we can do it during 2~3 working days;


USA Warehouse

Shipping Details:


Payment Terms

Payment Terms:

  • Paypal,Western Union,T/T Bank,Visa Card,Master Card,E-Checking
  • Alibaba Online Order is also available for some products and you can pay online

Company Information

Company Profile: 

  • GTL Biotech is a perfect combination of Sicience and Nature.
  • It symbolizes the company's Value: Be Great and Last in scientific way !
  • It owns three different production lines. The products can meet the demand of various industries.

  • Welcome to know more about us!
  • We also develop new processes and applications.
  • Up to now,GTL Biotech also has its own planting base for different raw material source. 
  • It owns an independently full modern laboratory which ensures the quality of the product.

Our Services

GTL Service:

1. Communicate with customers for the order details

2. Provide the One-Stop Service for the goods delivery

3. Help customers deal with the emergency affairs


Frequently Asked Question:


A: How can I order with you?

1.Communicating the order amount and payment terms

2.We send you the Invoice to confirm

3.Then make the payment.


B: When will you arrange the goods?

Usually,we will arrange the goods during 1~2 working days.


C: What if the goods is unqualified?

1. The third-party lab test is available,we can communicate and double check again.

2. If unqualified,you will get 100% refund.

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Transaction History of the Supplier

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Transaction Overview


Transaction Details

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Trade Assurance
China (Mainland) | Trading Company
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The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $32,000
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