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