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Home > Products >  Big ordering quality guaranteed Quercetin 117-39-5 manufactory

Big ordering quality guaranteed Quercetin 117-39-5 manufactory CAS NO.117-39-5

  • Product Details


  • Quercetin manufactory
  • big ordering Quercetin
  • quality guaranteed 117-39-5

Quick Details

  • ProName: Big ordering quality guaranteed Querce...
  • CasNo: 117-39-5
  • Molecular Formula: C15H10O7
  • Appearance: Yellow to green yellow crystalline pow...
  • Application: medicinal,etc
  • DeliveryTime: 7days
  • PackAge: Aluminum foil bag
  • Port: Shanghai, Ningbo
  • ProductionCapacity: 10 Metric Ton/Month
  • Purity: 98%
  • Storage: Store at 0-5oC
  • Transportation: by sea,by air
  • LimitNum: 1 Gram
  • Grade: Pharma Grade,Reagent Grade


Big ordering quality guaranteed Quercetin 117-39-5 manufactory


Company Info

Hangzhou Dingyan Chem Co., LTD. is located in the beautiful tourist city of hangzhou, is a comprehensive chemical enterprice which doing import and export business by its own company, and quality control by ISO9001:2008. Product range including HARD FAT(Fatty bases for Suppositories), API, pharma intermediates, metal catalyst, biochemical reagent and general reagents, plant extracts, plant growth regulator, food additive, etc. 
With the developing world market, we adhere to the principle of "quality, service, integrity and development" , following "low carbon, environmental protection", forge ahead, 
and constantly in pursuit of higher level of product quality and service. 
We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relatiions.
Process Capability :   The company covers an area of 40,000 m2,a registered capital of RMB 20 million,is a high-tech enterprises which specialized in pharmaceutical intermediates as the main products.The company has all kinds of professional chemical production line,matching a complete set of perfect office, warehouse,utility facilities,and with independent research and development team and advanced testing equipments.The company is mainly engaged in researching,developing,manufacturing and serving the chiral pharmaceutical intermediates, pharmaceutical raw materials, intermediates and related products.
Q1  Can i get some samples
A1  Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2  How to start orders or make payments
A2  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.                Payment by T/T, or Paypal or Escrow(Alibaba).
Q3  How to confirm the Product Quality before placing orders
A3  You can get free samples for some products,you only need to pay the shipping cost or arrange a          courier to us and take the samples. You can send us your product specifications and requests,we        will manufacture the products according to your requests.
Q4  What’s your MOQ
A4  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5  How about delivery leadtime
A5  Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6  Is there a discount
A6  Different quantity has different discount.
Q7  How do you treat quality complaint
A7  First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q8  How to contact us
A9  You can chat with us by Trademanager,MSN&Skype Online.
       You can choose your interested products and send inquiry to us.
       You can dial our telephone directly or send Email to us., you will get our reply.




Big ordering quality guaranteed Quercetin 117-39-5 manufactory


Proname quercetin
CAS No 117-39-5
4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;
Formula C15H10O7
Exact Mass 302.04300
Molecular Weight 302.23600
PSA 131.36000
LogP 1.98800
Appearance & Physical State Yellow to green yellow crystalline powde
Density 1.799 g/cm3
Melting Point 314-317ºC
Boiling Point 642.4ºCat 760 mmHg
Flash Point 248.1ºC
Refractive Index 1.767
Stability Stable under normal temperatures and pressures.
Storage Condition Store at 0-5ºC
Vapor Pressure
9.03E-16mmHg at 25°C
Assay (Quercetin) 98% UV     95%HPLC
Odor Characteristic
Mesh Size 80 mesh
Loss On Drying ≤5.0%
Residue on Ignition ≤5.0%
Heavy Metals <5ppmMax
As <2ppm
Pesticides Negative
Total Plate Count 1000/gMax
Yeast & Mold <100/gMax
Salmonella Negative
E.Coli Negative
Description Feedback
Quercetin is a flavonol found in many fruits, vegetables, leaves and grains. It can be used as an ingredient in supplements, beverages, or foods.
 Customer Distribution:Our line of business involved most of the world,such as Euro,Asia and America.Besides, we have abundant experience of foreign trading which can offer you the best service.

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