|
Alpha Arbutin
|
|
||
|
Specification: Alpha Arbutin 99% HPLC, Beta Arbutin 99% HPLC
|
|||
|
Description:
Arbutin can protect the skin against damage caused by free radicals, Arbutin is a skin whitening agent which is very popular in Japan and Asian countries for skin de-pigmentation, Arbutin inhibits the formation of melanin pigment by inhibiting Tyrosinase activity.
|
|||
SPEICIFICATION SHEET
|
Alpha Arbutin
|
99% HPLC
|
|
Appearance
|
White Crystalline Powder
|
|
Specific Rotation[a]D 20
|
+174.0°~+186.0°
|
|
Loss on Drying
|
< 5.0%
|
|
Residue on Ignition
|
< 0.5%
|
|
Heavy Metals
|
< 20ppm
|
|
Arsenic(As)
|
< 2ppm
|
|
Lead(Pb)
|
< 10ppm
|
|
Melting Point
|
202.0°C-212.0°C
|
|
PH
|
5.0-7.0
|
|
Total Plate Count
|
< 1,000cuf/G
|
|
Yeast & Mold
|
< 100cuf/G
|
|
E.Coli.
|
Negative
|
|
Salmonella
|
Negative
|
