Arbutin

Arbutin
CAS:497-76-7
Appearance: White Crystalline powder
Assay: 99.5%min

Arbutin

Appearance                                      : White Crystalline powder

Assay                                              : ≥99.5%

Melting point                                     : 199-201 ±0.5ºC

Clarity of water solution                      : Transparent, colorless, no suspended matters

PH value of 1% aqueous solution        : 5.0-7.0

Specific optical rotation                      : 66±2º

Infrared peak value 1515cm-1, 1220cm-1, 1050 cm-1: ±5-8cm-1

Arsenic                                             : ≤2ppm

Hydroquinone                                     : ≤10ppm

Heavy metal                                       : ≤10ppm

Loss on drying                                    : ≤0.5%

Ignition residue                                    : ≤0.5%

Pathogen: Becteria                             : ≤300CPU

Fungus                                              : ≤100CPU

Packing: 1kg net Aluminum foiled bag, 25bags in a net fiber drum