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Product Name: quercetin dihydrate
quercetin dihydrate source:quercetin is a flavonoid widely distributed in nature. The name has been used since 1857, and is derived from quercetum (oak forest), after Quercus.
quercetin dihydrate introduction: It is one of the most biologically active bioflavonoids. quercetin acts as a potent polyphenol antioxidant and immune system modulator.Many of its immune support attributes are enhanced by its synergistic relationship with vitamin C. quercetin is highly active in the skin and lining of the digestive tract .
Appearance: Light green yellow powder
Active ingredient: quercetin
Test By:HPLC
quercetin dihydrate specifications: quercetin 95% HPLC, 98% UV
Molecular formula: C15H10O7
Molecular weight: 302.24
Structural formula:
quercetin dihydrate Main benefits:
1. quercetin may expel phlegm and arrest coughing, it can also be used as anti-asthmatic.
2. quercetin has anticancer activity, inhibits PI3-kinase activity and slightly inhibits PIP Kinase activity, reduces cancer cell growth via type II estrogen receptors.
3. quercetin may inhibit histamine release from basophils and mast cells.
4. quercetin may control the spread of certain viruses within the body.
5. quercetin may help reduce tissue destruction.
6. quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis
quercetin dihydrate specification
|
Item |
Specification |
Result |
Method |
|
Maker Compounds |
NLT98% Artermisinin |
98.6% |
UV |
|
Organoleptic |
|
|
|
|
Odor |
Characteristic |
Conforms |
Organoleptic |
|
Part Used |
Whole herb |
Conforms |
|
|
Color |
White |
Conforms |
Visual |
|
Taste |
Characteristic |
Conforms |
Organoleptic |
|
Appearance |
Yellow crystalline |
Conforms |
Visual |
|
quercetin dihydrate Pesticide Residue |
|||
|
666 |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
DDT |
<0.2ppm |
Conforms |
GB/T5009.19-1996 |
|
quercetin dihydrate Physical Charactristics |
|||
|
Ash content |
≤12% |
6.21% |
AOAC942.05,17th |
|
Sulphated ash |
≤0.3% |
0.21% |
|
|
Melting point |
305-315℃ |
313℃ |
|
|
quercetin dihydrate Heavy metals |
|||
|
Total Heavy Metals |
≤20ppm |
Conforms |
CP2000 |
|
Arsenic |
≤2ppm |
Conforms |
GB/T5009.11-1996 |
|
Lead |
≤2ppm |
Conforms |
GB/T5009.12-1996 |
|
quercetin dihydrate Microbiological Tests |
|||
|
Staphylococcus |
Negative |
Negative |
AOAC |
|
E.Coli |
Negative |
Negative |
AOAC975.55,16 th |
|
Salmonella |
Negative |
Negative |
FDA(BAM)Chapter5.8 th Ed |
|
Total Yeast & Mold |
≤100cfu/g |
15cfu/g |
FDA(BAM)Chapter18.8th Ed |
|
Total Plate Count |
≤1000cfu/g |
190cfu/g |
AOAC990.12,16 th |
