1.beta arbutin    CAS:497-76-7
Formula:MSDS
Quantity:99.89%

Test	Specification	Results
Appearance	White needle crystal or powder	White powder
Melting Point	199-201±0.5	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 ±2.00	-65.1
Heavy Metals	10PPM  max	5PPM
Infrared peak value	1512cm-11219cm-11049cm-1±(5-7)cm-1	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

MP    : 203-207 degree

Assay: 99% by HPLC