Items
|
Standard
|
Analysis data
|
Appearance
|
White crystalline powder
|
conforms
|
Specific Rotation [20/D]
(C=1 in acetic acid)
|
-19.0±2º
|
-19.12º
|
TLC semi-quantitative
|
Not more than 0.25% D-Glu
|
conforms
|
Melting Point (¡æ)
|
172 to180 ¡æ
|
174¡æ
|
Loss on Drying
|
Not more than 0.50%
|
0.3%
|
Purity
|
Not less than 98.5%
|
98.9%
|