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Quercetin
Key words:
Quercetin
Classification:
DESCRIPTION
[English name]: Quercetin
【Plant origin】: Dried flower buds of the legume Sophora joponica L
【Product specifications】:95%
[Detection method]: HPLC
【CAS】：117-39-5
【Molecular Formula】: C15H10O7
【Molecular weight】: 302.24
【Structural Formula】:
2. Technical indicators
1. Appearance: yellow powder;
2. Total ash ≤5%, acid insoluble ash ≤2.0%;
3. Loss on drying ≤ 5.0%;
4. Heavy metals≤ 10ppm (Pb≤2ppm, Hg≤1ppm, Cd≤0.5ppm, As≤2ppm);
5. Microorganisms (non-irradiation): total colony number≤ 5000CFU/g; Mold and yeast≤ 500CFU/g;
Salmonella: Negative; E. coli: Negative.
3. Packaging and storage
[Product packaging]: double-layer plastic bag inside, aluminum foil bag or cardboard drum outside
【Packing specifications】: 10Kg/barrel, 25Kg/barrel
[Storage conditions]: Place in a cool, dry, dark, and high temperature place
[Shelf life]: two years
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Xi'an Sanjiang Bio-Engineering Co., Ltd.
Add：2401, Block B, Changhe International, Fengcheng 7th Road, Xi'an
Tel：+86-29-86515551
Fax：+86-29-86178265
E-mail：Sanjiang@sanjiangbio.com.cn
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