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 Plant Extract Quercetin (CAS 117-39-5), Factory Supply Thymosin Alpha 1 Powder CAS 62304-98-7, Pharmaceuticals 99% Pure Peptide Thymosin Alpha Melanotan Powder and so on.

Diamond Member Since 2014
Audited Supplier

Plant Extract Quercetin (CAS 117-39-5)

Min. Order / Reference FOB Price
1 KG US $1-90/ 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
Plant Extract Quercetin (CAS 117-39-5)
Product Name: Quercetin
Molecular Formula: C15H10O7
Molecular Weight: 302.23
CAS No.: 117-39-5
EINECS No.: 204-18-7
Appearance: Yellow fine Powder
Plant Extract Quercetin (CAS 117-39-5)
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

Plant Extract Quercetin (CAS 117-39-5)
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
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
1:We have 20 years of experience in exporting products, strong market response capabilities and a wide range of trading partners.

2:We have a variety of certified factories to produce high quality products.

3:We offer full link hosted services from production to delivery.

4:We provide testing services prior to shipment of the product.

5: We will cultivate customers in every country market, let customers develop quickly with us, and win-win cooperation.

6:Stable supply, delivery on time, quality assurance
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
Plant Extract Quercetin (CAS 117-39-5)
Question 1:Can you supply free samples ?
Answer:Because so many free sample orders everyday to us, sorry, we need to supply sample with charge, but sample charge can be deducted from future orders.Hope you can understand.

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.



T/T 30% T/T in advance, paid the balance before shipment
  30% T/T in advance, paid the balance against copy of B/L
L/CL/C amount above 20,000 usd, we can accept L/C at 
sight after the issuing bank approved by us
 Amount lower than 5000usd

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