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| Arbutin |
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| Arbutin,99%,powder |
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| 497-76-7 |
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| cosmetic additive, skin-whitening, skin lightening additive |
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Specifications:
1.Color and clarity of solution: clear, colorless without floaters
2.pH value (in 1% solution): 5.0 ~ 7.0
3.Specific rotation: -63°~ -66°
4.Melting point: 197 ~ 201 centi-degree
5.Loss on drying: Not more than1%
6.Heavy metal (Pb): Not more than 10ppm
7.Hydroquinone: Not more than 20ppm
8.Assay (by HPLC): Not less than 99%
Outer packing:25kg/fiber drum
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