United Arab Emirates
Saudi Arabia
Maroc
Egypt
Turkey
Vietnam
United States
Yichang Yonggim Co., Ltd.
China Manufacturer with main products: Coenzyme Q10, Dbiotin Biotin Vitamin H, Astaxanthin, Sodium Hyaluronate, Beta Sitosteral, Beta Carotene, Beta Arbutin, Alpha Arbutin |
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Specifications
alpha arbutin cas 84380-01-8
Item Specification Results
Appearance White crystalline powder
Assay : 99.90%
Melting point 2: 204.6-205.8
Clarity of water solution Transpency, colorless, none suspended matters Pass
pH value of 1% aqueous solution: 6.05
Specific optical ratation D20=+176~184degree +179.5
Hydroquinone 10 ppm max pass
Heavy metal 10 ppm max pass
Loss on drying 0.5% max 0.05%
Ignition residue 0.5% max 0.04%
Pathogen Bacteria:300cfu/g max
Fungus:100cfu/g max 20 20
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