CAS No.:84380-01-8
Other Names:alpha-Arbutin
MF:C12H16O7, C12H16O7
EINECS No.:617-561-8
Synonyms:AlphaArbutinPowder; 4-hydroquinone-alpha-d-glucopyranoside; alpha-arbutin; a-Arbutin; HydroquinoneO-α-D-Glucopyranoside; 4-Hydroxyphenyla-D-glucopyranoside; (2R,3S,4S,5R,6S)-2-(HYDROXYMETHYL)-6-(4-HYDROXYPHENOXY)TETRAHYDROPYRAN-3,4,5-TRIOL; 4-hydroxyphenylalpha-D-glucopyranoside
α-Arbutin is a glycosylated hydroquinone and an anomer of naturally occurring arbutin. It is a potent inhibitor of tyrosinase, a vital enzyme involved in epidermal melanin biosynthesis. α-Arbutin finds extensive application as a powerful skin-lightening agent in cosmetic industries.
| Test items | Detection Indicator | Test data |
| Appearance | White crystals or crystalline powder | White crystals powder |
| Loss on drying | <0.5% | 0.1% |
| pH | 5.0~ 7.0 | 6.50 |
| Residue on ignition | <0.5% | 0.03% |
| Specific rotation | +174.0°~ +186.0° | +179.40° |
| Melting point | 202.0 °C ~ 212.0 °C | 204.5 °C~ 205.5°C |
| Transmittance | ≥95.0% | 98.4% |
| As | ≤2ppm | <2 ppm |
| Pb | ≤10 ppm | <10 ppm |
| Assay | ≥99.5% | 100.0% |
| Hydroquinone | Negative | Negative |
α-Arbutin may be used as an analytical reference standard for the determination of the analyte in cosmetics by high-performance liquid chromatography with UV detection (HPLC-UV) method.
25kgs/drum, 9tons/20’containerPacking
AlphaArbutinPowder; 4-hydroquinone-alpha-d-glucopyranoside; alpha-arbutin; a-Arbutin; HydroquinoneO-α-D-Glucopyranoside; 4-Hydroxyphenyla-D-glucopyranoside; (2R,3S,4S,5R,6S)-2-(HYDROXYMETHYL)-6-(4-HYDROXYPHENOXY)TETRAHYDROPYRAN-3,4,5-TRIOL; 4-hydroxyphenylalpha-D-glucopyranoside
