| The differences among Alpha-Arbutin,β-Arbutin and Deoxyarbutin | ||||
| Product name | Alpha arbutin | β-arbutin | Deoxyarbutin | |
| Purity(Test byHPLC) | ≥99% | ≥99% | ≥98% | |
| Appearance | White crystal powder | White crystal powder | White crystal powder | |
| CAS No. | 84380-01-8 | 497-76-7 | 53936-56-4 | |
| Molecular formula | C12H16O7 | C12H16O7 | C11H14O3 | |
| Melting point | 195-196°C | 199 ~ 202°C(±0.5) | 86-87℃ | |
| Boiling point | 561.6±50.0 °C | 375.31°C | 349.8±32.0 °C | |
| Density(g/cm3) | 1.556±0.06 | 1.3582 | 1.174 | |
| Acidity factor (pKa) | 10.10±0.15 | 10.10±0.15 | 10.10±0.15 | |