Alpha Arbutin
Alpha-Arbutin is used in cosmetics as antioxidant, bleaching agent, skin conditioner. Alpha arbutin inhibits tyrosinase activity at very low concentrations.
Alpha-Arbutin is used in cosmetics as antioxidant, bleaching agent, skin conditioner. Alpha arbutin inhibits tyrosinase activity at very low concentrations. Although the inhibitory mechanism is different from arbutin, it is almost 10 times more intense than arbutin and at higher concentrations. In its latest submission, the European Union Consumer Safety Science Council(SCCS) said that Alpha arbutin is safe when it does not contain more than 2% in facial care products and less than 0.5% in body care products.
INCI Name: Alpha-arbutin
CAS#: 84380-01-8
M.F.: C12H16O7
M.W.: 272.26
Specifications:
|
Test Items |
Specifications |
|
Appearance |
White fine powder or crystals |
|
水中的透明度 |
透明无色无悬浮 |
|
红外特征峰 |
符合 |
|
可溶性 |
溶于水，乙醇 |
|
化验 |
≧99.5％ |
|
炽灼残渣 |
≦0.5％ |
|
干燥失重 |
≦0.5％ |
|
熔点 |
201.5-210.5℃ |
|
具体旋光度 |
[α] D20 = + 174.0° - + 186.0° |
|
pH（1％水溶液） |
5.0 - 7.0 |
|
重金属 |
<10 ppm |
|
Arsentic |
<2 ppm |
|
Plubum |
<1 ppm |
|
总平板数 |
<300 CFU / g |
|
酵母和霉菌 |
<100 CFU / g |
|
大肠杆菌 |
负 |
|
金黄色葡萄球菌 |
负 |
|
沙门氏菌 |
负 |
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