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Monobenzone (CAS 103-16-2), also known as hydroquinone monobenzyl ether, is white crystalline powder with 98%-99% pharmaceutical purity. It delivers permanent depigmentation by selectively destroying melanocytes, only approved as prescription API for extensive vitiligo to even uneven skin tone.
| Items | Standards | Results |
|---|---|---|
| Physical Analysis | ||
| Assay | ≥98.0% | 99.05% |
| Appearance | Powder | Conforms |
| Color | White Fine Powder | Conforms |
| Odor | Characteristic | Conforms |
| Melting Point | 118℃-120℃ | 119℃ |
| Loss on Drying | ≤5.0 | 0.3% |
| Residue on Ignition | ≤5.0 | 0.01% |
| Organic Volatile Impurities | ≤0.2% | 0.01% |
| Total Heavy Metals | ≤10 ppm | Complies |
| Arsenic | ≤0.5 ppm | Complies |
| Lead | ≤0.5 ppm | Complies |
| Mercury | ≤0.l ppm | Complies |
| Cadmium | ≤0.5 ppm | Complies |
| Total Colony Count | ≤ 750 CFU/g | Conforms |
| Yeast & Mold Count | ≤ 100 CFU/g | Conforms |
| Escherichia Coli | Absence | Conforms |
| Salmonella | Absence | Conforms |
| Staphylococcus Aureus | Absence | Absence |
| 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 |
