alpha-Arbutin 84380-01-8

Appearance:White crystals or crystallized powderAssay:99.5%min.
Identification-infrared 
Spectrum:In accordance with spectrum of standard α-Arbutin
PH:5.0-7.0
Melting Point:202°C~210°C
Optical Rotation:+175°~+185°
Loss on Drying:0.5% max.
Residue on ignition:0.5%max.
Transmittance:95%min. at 430nm
Hydroquinone:10ppm max.
Heavy Metal:10ppm max.
Total Bacteria:1000cfu/g max.
Yeast&Mold:100cfu/g max.
Escherichia coli:Negative
Staphylococcus aureus:Negative
Pseudomonas aerus:Negative