α熊果素
Import Source : FerryCo. Ltd. come from Netherlands
CERTIFICATE OF ANALYSIS
Product Name: α Arbutin
Analytical Tests Specifications Results
Solubioity(in water) |
Clear colourless |
|
Assay(by HPLC) |
20% |
|
Purity(by TLC) |
Single spot |
Pass |
Melting point(0C) |
196 + 2 |
198 |
Content of free hydroquinone |
Not detected |
Pass |
Optical rotation on dry basis |
-63 ~ 670 |
-65.00 |
sulphated ash ( %) |
<0.15 |
Pass |
Heavy metal |
<10 ppm |
Pass |
Arsenic |
<2 ppm |
Pass |
Microbes |
<100 cfu/ml |
Pass |
Storage: Store in a well-closed container away from moisture
Shelf Life 1 year if sealed and store from direct sun light