Quercetin,another name: Sophora Japonica Extract.
【Physical character】Yellow powder or granular,slightly soluble in water.
【Main specification】
- Assay: ≥HPLC95%，≥UV98%
- Specification: Dihydrate(9.0%~12.0%)，Anhydrate(≤4.0%)
- Appearance: Powder / Granular
【Botanical Source】Sophora Japonica L.
【Function & Application】
- 1、Enhances capillary resistance, reduces capillary brittleness,lowers blood lipids.
- 2、A natural plant dyestuf. t can be used as a medium for wool and cotton, yelow with aluminum sal, olive yellow with chromium salt, orange with tin saltand olive qreen with iron salt.
【CAS NO.】117-39-5
【Molecular Formula】C15H1007
【Packaging】
- Net weight ≤5kg, PE bag sealed, pack in Carton.
- Net weight ≥5kg≤25kg, PE bag sealed,pack in Fibre Drum.
【Storage and transportation requirements】
Store in cool & dry place，Do not freeze，Keep away from strong light and heat. Don’t store and transport with toxic and harmful goods.
| Analysis | standard | Results | |
| Assay | ≥98%（UV method） | Complies | |
| ≥95%（HPLC method） | Complies | ||
| Chemical Control | |||
| Heavy Metal | <10ppm | Complies | |
| (Pb) | ≤3ppm | Complies | |
| (As) | ≤1ppm | Complies | |
| (Cd) | ≤1ppm | Complies | |
| (Hg) | ≤0.1ppm | Complies | |
| Physical Control | |||
| Appearance | Fine Powder | Complies | |
| Color | Yellow | Complies | |
| Odor | Characteristic | Complies | |
| Particle Size | 95% pass 80 mesh | Complies | |
| Loss On Drying | ≤4.0% | Complies | |
| Residue on ignition | ≤0.5% | Complies | |
| Microbiological | |||
| Total Of Bacteria | <1000cfu/g | Complies | |
| Fungi | <100cfu/g | Complies | |
| Salmonella | Negative | Complies | |
| Coli | Negative | Complies | |
| Storage | Store in cool & dry place，Do not freeze，Keep away from strong light and heat. | ||
| Shelf Life | Two Years. | ||
Certificate Of Analysis
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