Detailed
| Name: Quercetin | ||
| CAS#: 6151-25-3 | ||
| Botanical Source: Sophora Japonica | ||
| Specification: HPLC 95%, HPLC 98%, Dihydrate, Anhydrous, Powder or Granule | ||
| Function & Application: Quercetin has good expectorant and antitussive effects, it also reduces the blood pressure, enhances capillary immunity, reduces capillary fragility, lowers blood lipids, expands coronary arteries, and increases coronary blood flow. | ||
| TEST ITEM | STANDARD | RESULT |
| Appearance | Yellow powder | Complies (Visual) |
| Melting point | 305-315℃ | Complies(Melting point apparatus) |
| Identification | Must Positive | Complies |
| Solubility | ||
| - in water | Soluble slightly | Complies |
| - in methanol | Soluble freely | Complies |
| - in alkaline solutions | Soluble freely | Complies |
| - in acetic glacial acid | Soluble freely | Complies |
| Loss on drying | 9.0%---12.0% | Complies |
| Residue on ignition | ≤0.5% | Complies |
| Mesh size | 100% pass 100 mesh | Complies |
| Assay | ≥95% | 96.5%/99.2% (HPLC/UV) |
| HEAVY METAL | STANDARD | RESULT(ICP-MS) |
| Lead | ≤3ppm | Complies |
| Cadmium | ≤1ppm | Complies |
| Mercury | ≤0.1ppm | Complies |
| Arsenic | ≤1ppm | Complies |
| MICROBIOLOGICAL TEST | STANDARD | RESULT |
| Total microbial count | ≤1000cfu/g | Complies |
| Yeast & mold | ≤100cfu/g | Complies |
| E.Coli | Negative | Negative |
| Salmonella | Negative | Negative |
| Packaging: The usual packaging is 25kg net carton drum or box with a polyethylene bag in side. | ||
| Storage: Preserve in well closed,light resistant and dry environment. | ||
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