Skin whightening / Beta Arbutin
Minimum Order: 0
Quality/Safety Certification: 0.00
Arbutin:
1. Cas No:497-76-7
2. Alpha Arbutin/Beta-Arbutin/D-Arbutin
3. Arbutin Assay: 99.9%
4. Best quality and good pri
Item | Specification | Results |
Appearance | White crystalline powder | White crystalline |
Assay | 99.0%Min | 99.90% |
Melting point | 203~206±1°C | 204.9-206.0 |
Clarity of water solution | Transpency, colorless, none suspended matters | Pass |
pH value of 1% aqueous solution | 5.0~7.0 | 6.45 |
Specific optical ratation | [α]D20=+176~184º | +179.4 |
Arsenic | ≤2 ppm | pass |
Hydroquinone | ≤10 ppm | pass |
Heavy metal | ≤10 ppm | pass |
Loss on drying | ≤0.5% | 0.05% |
Ignition residue | ≤0.5% | 0.05% |
Pathogen | Bacteria≤300cfu/g Fungus≤100cfu/g | <20 <20 |
Conclusion |
| pass |
