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| Product Name: |
Quercetin
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| Supply Ability: |
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| Related proudcts |
plant extract, quercetin, |
| Specifications |
98% |
| Price Term: |
FOB CNF CIF EXW |
| Port of loading: |
AS REQUIRED |
| Minimum Order |
10 GRAM |
| Unit Price: |
NEGOTIABLE |
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Quercetin
Plant origin: dried flower buds and fruits of sophora flavescens Ait; Bark and leaves of quercus iberica; Dysosma veitchii(Hemsl. et Wils.) Fu; Hypericum plants with red Eclipta (Hunan perforatum) Hypericum ascyron L. wholeherb; oleander plant kenaf Apocynum lancifolium Rus. Leaves.
Quercetin belong to flavonoid, it exist in the flowers, leaves, fruits of many plants mostly in form of glycosides, e.g. rutin, quercetin glycosides, hyperin, etc.. it can be obtained by acid hydrolysis.
Name: Quercetin or Meletin, Sophretin
CAS number: 117-39-5
Molecular formula: C15H10O7
Molecular weight: 302.23
Properties: yellow needle crystalline dihydrate (dilute ethanol),between the 95-97 centigrade degree become anhydrous, m.p. 314 centigrade degree (decomposition). Can be dissolved in cold ethanol (1:290), freely soluble in hot ethanol (1:23), soluble in methanol, ethyl acetate, acetic acid, pyridine, acetone etc, insoluble in water, benzene, ether, chloroform, petroleum ether, etc., alkaline aqueous appears yellow, almost insoluble in water, taste bitter dissolve in ethanol liquid.
Content: 98%
Method: HPLC
Function : quercetin have good expectorant£¬anti-cough and some asthma effect , can be used for the treatment of chronic bronchitis. There are also effect to reduce blood pressure, increase capillary resistance, reduce capillary fragility, reduce blood fat, expand coronary artery, increase coronary blood flow. It is that effect of adjuvant therapy for patients of coronary heart disease and hypertension.
¡¡¡¡1. anti-oxidants, mainly for oil, beverages, cold drinks, meat processing products.
¡¡¡¡2. natural dyes, it can be used for media, e.g. wool and cotton, aluminum salt yellow, chromium salt olive ¡¡¡¡¡¡¡¡yellow, tin salts orange , iron salts olive green, good at anti-soaping , Sunscreen level medium.
¡¡¡¡3. anti-tumor effect, quercetin could significantly inhibit Cancer cell and the growth of malignant cells in vitro and AISHI's ascites tumor DNA, RNA |
| Company: |
Hunan Zhengdi Biological Resources Development Co. Ltd.
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| Contact: |
Ms. Adela Lee |
| Address: |
229 Tongzipo West Road, Yuelu District |
| Postcode: |
410000 |
| Tel: |
0086 731 85455960 |
| Fax: |
0086 731 85461025 |
| E-mail: |
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