|
Product Name
|
α-Arbutin
|
|
CAS Number
|
84380-01-8
|
|
Molecular Formula
|
C12H16O7
|
|
Molecular Weight
|
272.25
|
|
Shelf-life
|
Two years
|
|
Appearance
|
White or
almost white crystalline powder
|
|
Solubility
|
Soluble in
water, slightly soluble in methanol
|
|
Identification
|
According to
infrared spectrophotometry, the samples have characteristic absorption peaks
at 1514cm-1, 1229cm-1, 1215cm-1, 1059cm-1 and 1034cm-1
|
|
Hydroquinone
|
≤10ppm
|
|
Optical
rotation
|
174.0°~186.0°
|
|
Melting point
|
202℃~207℃
|
|
Transparency
of aqueous solution
|
Should be colorless and transparent, without suspended matter
|
|
PH (1%
solution)
|
5.0~7.0
|
|
Loss on
Drying
|
≤0.5%
|
|
Residue on ignition
|
≤0.5%
|
|
Heavy Metals
(As Pb)
|
≤10ppm
|
|
Assay
|
≥99.95%
|
|
Standard
|
In-house
|