item |
standard |
|
characters |
white crystallinity powder |
|
identification |
a) infrared absorption |
|
b) hplc |
|
|
specific rotation |
-45°~ -49° |
|
crystallinity |
meets the requirements |
|
ph |
9.0~11.0 |
|
water |
4.0~5.0% |
|
residue on ignition |
≤0.3% |
|
heavy metals |
≤25% |
|
assay |
945~1030μg/mg (c38h72n2o12)based on anhydrous substance |
|