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Country: China (Mainland)
Business Type:Trading Company
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Province/state: Shaan xi
City: xi'an
Street: Xi'an
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CAS NO.117-39-5
Powder(1-50)KilogramPowder(51-500)KilogramPowder(500-1000)Kilogram
1. Who are we
We are based in Shaanxi, China, start from 2018,sell to North America(00.00%),
Western Europe(00.00%),South America(00.00%),Southeast Asia(00.00%),
Eastern Europe(00.00%). There are total about 11-50 people in our office.
2. How can we guarantee quality
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us
Plant Extracts,Cosmetics Raw Materials,Vitamin Raw Materials,Pharmaceutical Raw Materials and Intermediates.
4. Why should you buy from us not from other suppliers
Our company mainly devoted in producing pharmacetical intermediates , Vitamins , and health supplement ,
the quality and technical content can reach the advance level in China .
Our products are sold well in China as well as in more than 20 countries.
5. What services can we provide
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian.
6.We promise our customer following items
Support product customization:
We can provide OEM&ODM , Because we have a professional design team.
Reasonable price:
We provide high quality products with competitive price in china,
Low MOQ:
No worry about the low moq, our moq is 1 gram or lower.
Good and efficient service,Fast Delivery
Fast respond save client's time, we promise to reply inquiry in 24 hours including holidays and send quotation sheet and other documents in 48 hours.
Super-good quality
We have strict quality control system .Good reputation in Market , And have the Third party test report is available.
What's CAS 117-39-5 Quercetin Powder
Product Name | Quercetin Dihydrate |
Appearance | Yellow powder |
Identification | Must positive |
Melting point | 305ºC~315ºC |
Particle size | 95% pass through sieve # 80mesh |
Reducing sugars | Not be detected |
Sulfate | ≤1000ppm |
Chloride | ≤1000ppm |
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 test | Total plate count: ≤1000cfu/g Mildew & Yeast: ≤100cfu/g E.Coli: Negative Salmonella: Negative Coliforms: ≤10cfu/g |
Quercetin is a phytochemical that is part of the coloring found in the skins of apples and red onions.Quercetin may
expel phlegm and arrest oughing, it can also be used as antiasthmatic. Quercetin has anticancer activity, inhibits PI3-
kinase activity and slightly inhibits PIP Kinase activity, reduces cancer cell growth via type II estrogen receptors.
Quercetin may inhibit histamine release from basophils and mast cells.Quercetin may control the spread of certain
viruses within the body. Quercetin may help reduce tissue destruction. Quercetin may also be beneficial in the
treatment of dysentery, gout, and psoriasis.
Function & Application
1. Applied in pharmaceutical industry: Some medicine with bromelain like throat tablet can diminish inflammation,
facilitate digestion and improve immunological competence.So it can be applied in examination, treatment of gynecopathy,
glaucoma and inset bitten.
2. Applied in food industry: It can be applied in hydrolyzing protein of plants and animals, so it can be used in the meat
tenderizer,wine clarifier,stabilizer of noodle,health foods and soy sauce brewing etc. It can also improve the nutritional value.
1. Expel phlegm and arrest coughing, it can also be used as anti-asthmatic;
2. Quercetin has anticancer activity, inhibits PI3kinase activity and slightly inhibits PIP Kinase activity; reduces cancer cell growth
via type II estrogen receptors
3. Inhibit histamine release from basophils and mast cells;
4. Control the spread of certain viruses within the body;
5. Quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis.
Items |
Standards |
Results |
Physical Analysis |
||
Description |
Light Yellow Fine Powder | Complies |
Assay |
Quercetin 95% (HPLC) | 95.26% |
Mesh Size |
100 % pass 80 mesh | Complies |
Ash | ≤ 5.0% | 2.85% |
Loss on Drying |
≤ 5.0% |
2.82% |
Chemical Analysis | ||
Heavy Metal | ≤ 10.0 mg/kg | Complies |
Pb | ≤ 2.0 mg/kg | Complies |
As | ≤ 1.0 mg/kg | Complies |
Hg | ≤ 0.1 mg/kg | Complies |
Microbiological Analysis | ||
Residue of Pesticide | Negative | Negative |
Total Plate Count | ≤ 1000cfu/g | Complies |
Yeast&Mold | ≤ 100cfu/g | Complies |
E.coil | Negative | Negative |
Salmonella | Negative |
Negative |
1. All inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. OEM/ODM Available.
5. Reasonable & competitive price, fast lead time.
6. Sample is available for your evaluation & Formulation development.
7. Faster delivery:Sample order in stock and 3-7 days for bulk production.
8.We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder
9. After-Sale Service:
1) International Authorized Third-Party Test For The Products You Demand.
2) 30 Days Warranty of quality of goods.
Delivery & Payment Terms
Julong Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged
in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials
and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability
of product quality from all aspects. The company has a complete sales service system, the products are exported to countries
all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers,
constantly strict requirements, set goals, and implement win-win development.
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