Product Category
β-arbutin
LEKWhite β-Arbutin
Arbutin
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Details
INCI Name: Arbutin
Application: Skin whitening cosmetics
Appearance: White crystalline powder
CAS No.: 497-76-7
Chemical Formula: C12H16O7
Molecular Weight: 272.25
Specification: 25kg/drum
Molecular Structure:
Recommended Dosage: 2%~7%
Storage and Expire date: Keep sealed in a shaded and cool place between 5 and 25 degree. If strictly following the storage instruction, it can be stored well for 2 years.
Quality Standard：
|
Item |
Specification |
|
Appearance |
White crystalline powder |
|
Assay |
≥ 99.5% |
|
Melting point |
199~201±0.5 ℃ |
|
Clarity of water solution |
Transparent, colorless, none suspended matters |
|
pH value of 1% aqueous solution |
5.0～7.0 |
|
Specific optical rotation |
【α】20D= -66±2º |
|
Infrared peak value |
1515cm-1 1220cm-1 1050cm-1 ±（5-8）cm-1 |
|
Chloride |
≤ 0.036% |
|
Arsenic |
≤ 2 ppm |
|
Hydroquinone |
≤ 10 ppm |
|
Heavy metal |
≤ 10 ppm |
|
Loss on drying |
≤ 0.5% |
|
Residue on ignition |
≤ 0.5% |
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