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| Parameter Category | Details |
|---|---|
| Chemical Name | α-Arbutin (4-Hydroxyphenyl-α-D-glucopyranoside) |
| CAS Number | 84380-01-8 |
| Chemical Formula | \(\ce{C12H16O7}\) |
| Molecular Weight | 272.25 g/mol |
| Appearance | White to off-white crystalline powder |
| Odor | Odorless |
| Solubility | Soluble in water and hot ethanol; slightly soluble in cold ethanol; insoluble in chloroform and ether |
| Melting Point | 195–198 °C |
| Purity (Cosmetic Grade) | ≥99.0% |
| pH Value (1% aqueous solution) | 4.0–6.0 |
| Stability | Stable under acidic conditions (pH 3.0–6.0); sensitive to strong alkali and high temperature; avoid direct sunlight |
| Storage Condition | Store in a cool, dry, dark place; sealed container; shelf life up to 3 years under proper storage |
