Product Information
Chemical Name 4-Hydroxyphenyl α-D-glucopyranosideCAS No. 84380-01-8
INCI Name Alpha-Arbutin
Alias α-Arbutin, Alpha Arbutin
Molecular Formula C₁₂H₁₆O₇
Molecular Weight 272.25
EINECS 440-470-8
Grade Cosmetic Grade (99% min)
Chemphysical Properties
Appearance White to off-white fine crystalline powder
Odor Odorless
Melting point 203~207℃Solubility Freely soluble in water, soluble in glycerin, propylene glycol and ethanol
Specific rotation [α]D20 +174° ~ +186°
pH (1% aqueous solution) 5.0 ~ 7.0
Quality Specification
| Test Item | Standard |
|---|---|
| Assay (HPLC) | ≥99.0% |
| Free Hydroquinone | ≤1 ppm |
| Loss on drying | ≤0.5% |
| Residue on ignition | ≤0.1% |
| Heavy metals (as Pb) | ≤10 ppm |
| Arsenic (As) | ≤1 ppm |
| Total Plate Count | ≤100 CFU/g |
| Yeast & Mold | ≤10 CFU/g |
| Pathogenic bacteria | Negative |
Application & Use
Skincare cosmetics: Skin brightening & whitening raw material, reduce dark spots, melasma and uneven skin tone.
Widely used in serum, whitening cream, facial mask, spot essence and toner.
Advantage: High stability, less irritation, effective at low dosage, better inhibition effect than beta-arbutin.Formulation suggestion: Add in aqueous phase below 40℃ to keep stability.
Packing Delivery & Storage
Packing: 1kg / 5kg aluminum foil bag; 25kg fiber drum with inner PE bag
Storage: Keep tightly sealed, store in cool, dry and dark warehouse. Avoid high temperature and strong UV light.
Shelf life: 24 months under proper storage.
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