99.90%Min (HPLC) Alpha- Arbutin
cosmetic grade
Alpha- Arbutin and beta arbutin
Capability : 1500MT/year
alpha arbutin cas 84380-01-8
Appearance: White crystalline powder
Assay: 99.90%
Melting point: 204.6-205.8
Synonym: 4-Hydroquinone-alpha-D-glucopyranoside
Molecular formular:C12H16O7
Molecular weight:272.25
CAS:84380-01-8
Purity:99.5%
Packaging Detail: 25kg/drum
Arbutin has been used in the treatment of disorders of hyperpigmentation such as postinflammatory hyperpigmentation caused by acne, trauma, allergic reactions, infections, injuries, phototoxic reactions, reactions to medications, reactions to cosmetics, and inflammatory diseases.
Arbutin concentration protocols for skin whitening have not yet been established. Low concentrations have no effect, while high concentrations of about 5% or more can be as irritating as hydroquinone and may potentially result in unexpected hyperpigmentation (darkening).
| Item | Specification | Results |
| Appearance | White crystalline powder | White crystalline |
| Assay | 99.0%Min | 99.90% |
| Melting point | 203-206degree | 204.6-205.8 |
| Clarity of water solution | Transpency, colorless, none suspended matters | Pass |
| pH value of 1% aqueous solution | 5.0-7.0 | 6.05 |
| Specific optical ratation | D20=+176~184degree | +179.5 |
| Arsenic | 2 ppm max | pass |
| Hydroquinone | 10 ppm max | pass |
| Heavy metal | 10 ppm max | pass |
| Loss on drying | 0.5% max | 0.05% |
| Ignition residue | 0.5% max | 0.04% |
| Pathogen | Bacteria:300cfu/g maxFungus:100cfu/g max | 2020 |
| Conclusion | pass |
