China (Mainland)
Assessedsupplier 
Big ordering quality guaranteed Quercetin 117-39-5 manufactory CAS NO.117-39-5
- Min.Order: 1 Gram
- Payment Terms: L/C,T/T,
- Product Details
Keywords
- 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
Superiority
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.
FAQ
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.
Details
Big ordering quality guaranteed Quercetin 117-39-5 manufactory
Details
| Proname | quercetin |
| CAS No | 117-39-5 |
| Synonyms |
MELETIN;
2',3,4',5,7-pentahydroxyflavone;
4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;
QUERTINE;
|
| 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.
