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alpha-arbutin
Product Name alpha-arbutin
Company Catalog TOP-BE0006
CAS No. 497-76-7
Specifications 99.5%
Packaging 1kg, 5kg/Bag ,25kg/Drum or customized package
Product Description

English name: Arbutin, Arbutosie, Ursin, Uresol etc...
CTFA name: Arbutus extract
CAS register name and No.: Arbutin No. 497-76-7
Chemical name: Hydroquinone-β-D-glucopyranoside 
Molecular formula: C12H16O7
Molecular weight: 272.25

Alpha-arbutin:
Item Specification
[Description]: White crystals or crystalline powder, IR spectrum conforms
[Specific rotation[α]D20]: +174.0 degree~+186.0 degree
[Assay (HPLC)]: 99.5% min.
[Loss on drying]: 0.5% max.
[Residue on ignition]: 0.5% max.
[pH]: 5.0~7.0
Standard: In-house
Package: 1kg/tin or 5kg/tin


Shiseido patented the use of Arbutin in skin-whitening cosmetics. Some companies bypass the patents by using Arbutin-containing plant extracts such as bearberry. There is inadequate research data showing that Arbutin extracted from plants has any skin whitening effects.

Beta -Arbutin CAS No.:479-76-7
Synonym 4-Hydroquinone ß-D-glucopyranoside
Formula C12H16O7
Molecular 272.25
Appearance White needle or crystal or powder
Assay ≥99.5%
Melting point 198-202 celsius degree
PH value(in 1%solution) 5.0-7.0
Specific rotation -63 to -67
Infrared characteristic peak value

1512cm-1 1219cm-1

1049cm-1

5-7)cm-1

Loss on drying ≤0.5%
Residus on lgnition ≤0.5%
Heavy metals(Pb) ≤10ppm
Arsenic ≤2ppm
Hydroquinone None
   
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