ShineHerb
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Dihydroquercetin (Taxifolin, CAS 480-18-2) is a highly active natural flavonoid extracted from larch. With five phenolic hydroxyl groups, it delivers stronger free radical scavenging capacity than VC and VE.
| Characters | Specifications | Results |
|---|---|---|
| Appearance | Yellow, crystalline powder | Yellow, crystalline powder |
| Solubility | Practically insoluble in water, Soluble in aqueous alkaline sol. | Complies |
| Melting point | 305-315℃ | 310℃ |
| Identification | Must positive | Complies |
| Tests | ||
| Loss on drying | 9.0-12.0% | 9.12% |
| Sulphated ash | ≤0.5% | 0.3% |
| Heavy metal | ≤10ppm | Complies |
| Arsenic | < 1.0 ppm | Negative |
| Cadmium | < 1 ppm | Negative |
| Lead | < 3.0 ppm | Complies |
| Mercury | < 0.1 ppm | Complies |
| Particle Size | 100% pass 80 mesh | Complies |
| Assay (on dry product) | ≥95% HPLC / ≥98% UV | 96.38% / 99.33% |
| Microbiological test | ||
| Total plate count | ≤1000CFU/g | Complies |
| Yeast & Mould | ≤100CFU/g | Complies |
| E. Coli | Absent | Absent |
| Pseudomonas aeruginosa | Absent | Absent |
| Weight | Packing method |
|---|---|
| 1kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10kgs, 25kg or more | by Drums or carton (2 layers plastic bag inside) |
| Weight | Delivery method | Delivery time | Destination |
|---|---|---|---|
| 1kg-25kgs | EMS, DHL, UPS, Fedex | 3-7 days | Door to door |
| 25kgs-100kgs | DHL, FedEx, by Air | 3-7 days | Door to door (to Airport by Air) |
| more than 100kgs | by Air | 3-7 days | Door to Airport |
| by Sea | 10-35 days | Door to port |
