Arbutin

Name: Arbutin
CAS NO: 497-76-7
Molecular Formula: C12H16O7
Standard : Cosmetics grade
Packing:25kg/drum,
Usage: Pharmaceutical, cosmetics, industry

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Item	Specs.
Appearance	white crystalline powder
Assay	≥99.5%
Melting point(°C)	199 ~ 202(±0.5)
Clarity of water solution	Transparency , colorless, none suspended matters
pH value of 1%aqueous solution	5.0~7.0
Heavy metal	<10ppm
Specific optical rotation	-68~ -64
Infrared signature peak	1515cm^-1 1220cm^-1 1050±(5~8)cm^-1
Arsenic	≤2 ppm
Loss on drying	≤0.5%
Ignition residue	≤0.5%
Hydroquinone	≤10ppm
Pathogen	Bacteria count≤300CPU Fungus≤100CPU