Specification :

Alpha-Arbutin(±-Arbutin)
±-Arbutin(Alpha Arbutin) is a new type of hydroquinone glucoside with an ±-glucosyl bond.
as a skin-lightening ingredient of cosmetics, ±-Arbutin has strong inhibiting effect on human tyrosinase. Indeed, the enzyme is involved in synthesis of melanin which causes freckles and suntan.
±-Arbutin is a cosmetic ingredient that customers can use safely and comfortably. For your use of ±-Arbutin, you can receive not only quality assurance but also data concerning safety and efficacy as well as support with respect to ±-Arbutin-related applications.
Mechanism of Melanogenesis Inhibition of ±-Arbutin:

±-Arbutin and ²- Arbutin:
Sample Mushroom Human
IC50 IC50
±-Arbutin Not detected 1.8 - 2.1 mM
Arbutin (²) 8 mM > 30 mM
Trade Name ±-Arbutin
Chemical name 4-Hydroxyphenyl-±-D-glucopyranoside
CAS No. 84380-01-8
ELINCS No. 440-470-8
INCI name Alpha-Arbutin
Molecular Formula C12H16O7
Molecular Weight 272.25
Chemical Structure
Specifications
Appearance White powder
Purity e99% HPLC
Melting point 196 ~ 202°C
Specific rotation [±]20D +180±6°
Solution Clear
Loss on drying Less than 1.0%
Microbiological
Specified pathogens None
Microbial count d100 CFU/g
Fungus d50 CFU/g
Safety
To be safe for cosmetic use. The available data do not indicate any risks.
Storage
±-Arbutin (Alpha-Arbutin) should be stored in the original sealed pouchs protected from light and humidity in a clean area at a temperature of between 10 and 30°C.
If stored under the recommended conditions, ±-Arbutin remains stable for 3 years.
Packing
1kg PVC+aluminum pouch