|
Item
|
Specification
|
Result
|
|
Assay(HPLC)
|
≥98.0%~102.0%
|
99.2%
|
|
Appearance
|
White crystalline powder with hygroscopic
properties
|
Conforms
|
|
Identification
|
The sample spectrm. is consistent with the
standard spectrum.
|
Conforms
|
|
Water Content
|
≤4.0%
|
0.10%
|
|
Residue on ignition
|
≤0.5%
|
0.05%
|
|
PH
|
5.5~9.5
|
7.0
|
|
Specific rotation
|
-29.0°~-32.0°
|
-31.0°
|