Anhui, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9000
Average Lead Time:
Peak season lead time: within 15 workdays
Off season lead time: within 15 workdays
OEM/ODM Service
Sample Available

Quercetin, Extract, Expectorant Cough manufacturer / supplier in China, offering 100% Natural Sophora Japonica Extract Quercetin, Factory Supply Organic Tomato Extract Lycopene Powder 5% 10% 20% Lycopene, Manufacturer Supply Natural Tomato Extract Lycopene Powder Carotenoids Pigment Price and so on.

Diamond Member Since 2014
Audited Supplier

100% Natural Sophora Japonica Extract Quercetin

Min. Order / Reference FOB Price
10 KG US $25.63-32.8/ KG
Port: Shanghai, China
Production Capacity: 5000kgs/Month
Payment Terms: L/C, T/T, D/P
Certification: BRC, ISO, FDA, HACCP
Assay Method: UV
Application Form: Injection, Tablet, Capsule
Application: Food, Health Care Products, Medicine
State: Powder
Extract Source: Sophora Japonica

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Basic Info.

Model NO.
5-15 Days
Transport Package
25kg Drum
100% Natural Sophora Japonica Extract Quercetin
Product Name: Quercetin
Molecular Formula: C15H10O7
Molecular Weight: 302.23
CAS No.: 117-39-5
EINECS No.: 204-18-7
Appearance: Yellow fine Powder
Product NameQuercetin Dihydrate
AppearanceYellow powder
IdentificationMust positive
Melting point305ºC~315ºC
Particle size95% pass through sieve # 80mesh
Reducing sugarsNot be detected
Bulk density≥0.20gm/cc
Tapped density≥0.30gm/cc
Heavy metals≤10ppm
Sulphated ash≤0.30%
Loss on drying≤0.20%
Assay by HPLC≥95.0%
Microbiological testTotal plate count: ≤1000cfu/g
Mildew & Yeast: ≤100cfu/g
E.Coli:      Negative
Salmonella:   Negative
Coliforms:  ≤10cfu/g      
Arsenic,Mercury,Cadmium,Lead about Sophorae Japonica (The starting material of Quercetin Dihydrate ) is below:
Residual solventMeets the requirements of USP.
Pesticide ScreenMeets the requirements of USP.
GMO/BSE statusNot genetically modified organism. Free
of BSE
StorageStore in tight containers,in a cool dry area


Quercetin soluble in glacial acetic acid, alkaline solution yellow, almost insoluble in water, ethanol solution;Taste very bitter.Can be used as a drug, has a good expectorant, cough, and there was a smooth wheezing effect.In addition to lowering blood pressure, improve blood capillary resistance, reduce capillary fragility, blood fat, expansion of coronary artery, increase coronary blood flow, and so on.Used in the treatment of chronic bronchitis.In patients with coronary heart disease and high blood pressure also have auxiliary therapy effect

Packing And Shipment

 Fedex/DHL/TNTShiping By AirShiping By Sea
Suitable QuantityUnder 25KGUnder 100KGMore Than 100KG
Shipment Time3-10 Days5-15 Days15-45 Days
Shiping CostHigh CostHigh CostLost Cost
ServiceDoor to DoorDoor to AirportPort To Port
OtherEasy To Pick Up GoodsProfessional Broker is Needed

100% Natural Sophora Japonica Extract Quercetin


100% Natural Sophora Japonica Extract Quercetin


Question 1:Can you supply free samples ?
Answer:Yes. We can provide with Free sample

Question 2: How to assure your delivery same good quality as sample? 
Answer: We just take sample from mass production. So same production line,same quality. Even we can supply you preshipment batch sample approval. 

Question3. How to assure our delivery and quality after prepayment? If there is a dispute about quality etc, how to solve the problem?
Answer: We are committed to ingredient industry for nearly 20 years. Our products sold popular to European, american, russia and asian market.
The most important is pls book order directly in Alibaba order.You can get extra Ali trade assurance. Our current assurance limit is USD104000 and will still up in future.
We welcome use Trade Assurance, you'll enjoy:
100% product quality protection
100% on-time shipment protection
100% payment protection for your covered amount

Question 4:What kind of payment do you prefer?
Answer: We can accept TT, DP,LC,Westunion etc.

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