1.beta arbutin    CAS:497-76-7   Capability : 5000MT/year

   Assay:99.89%

Test	Specification	Results
Appearance	White needle crystal or powder	White powder
Melting Point	199-201	199.5-201.5
Clarity of water solution	Transparency colorless, none suspended matters	Complies
PH Value of 1% Aqueous Solution	5.0-7.0	6.30
Specific Optical Rotation	[a]20 -65.00	-65.1
Heavy Metals	10PPM  max	5PPM
Infrared peak value	requires	Complies
Arsenic	2PPM  max	0PPM
Hydroquinone	negative	Negative.0ppm
Loss on Drying	0.5%  max	0.16%
Residue on Ignition	0.5%   max	0.35%
Bacteria count	Bacteria  300cpu   max	101
	Fungus   100cpu    max	29
Assay(HPLC)	99.5%  min	99.95%

2.alpha  arbutin   cas 84380-01-8    Capability : 1500MT/year

MP    : 203-207 degree    Assay: 99% by HPLC

Item	Specification	Results
Appearance	White crystalline powder	White crystalline
Assay	99.0%Min	99.90%
Melting  point	203-206degree	204.6-205.8
Clarity of water solution	Transpency, colorless, none suspended matters	Pass
pH value of 1% aqueous solution	5.0-7.0	6.05
Specific optical ratation	D20=+176~184degree	+179.5
Arsenic	2 ppm max	pass
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
Conclusion		pass