| Customization: | Available |
|---|---|
| Certification: | RoHS, BRC, ISO, FDA, HACCP |
| Assay Method: | HPLC-MS, GPC, HPLC, UV |
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Usnic acid are the usnea Extract powder, also called Lichen Extract, Usnea Barbata Extract, comes from the Dry Lichen of Usnea longissima. General ingredient content: Usnic Acid (Usninic Acid) 98%. The yellow crystalline powder is widely used in curing wounds and burns, antibacterial and antisepsis as the raw material of toothpaste, cosmetics and perfume.
| Items | Specifications | Results |
| Appearance | Yellow Powder | Complies |
| Identification | Positive | Complies |
| Assay | 98 | 98.5% |
| Ash | ≤5.0% | 2.55% |
| Loss on drying | ≤5.0% | 1.20% |
| Ignition residue | ≤2.0% | 0.25% |
| Heavy metals | ≤10ppm | Complies |
| Pb | ≤2.0ppm | Complies |
| As | ≤2.0ppm | Complies |
| Odor | Characteristic | Complies |
| Particle size | 100%through 80 mesh | Complies |
| Microbioiogical: | ||
| Total of bacteria | ≤1000cfu/g | 100cfu/g |
| Fungi | ≤100cfu/g | Complies |
| Salmgosella | Negative | Complies |
| Coli | Negative | Complies |
| Conclusion |
Conform with USP/FCC/E302 specification |
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| Storage condition | Store in cool & dry place, Do not freeze. Keep away from strong light and heat. | |
| Shelf life | 2 years when properly stored | |
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