Storage conditions: -20°C Freezer
Items of Analysis | Standard of Analysis | Test Results | ||
Appearance | Off-white to pale yellow powder | Off-white powder | ||
Specific rotation(°) | +13.0~+18.0 | +17.9 | ||
Identification | IR | Consistent with the reference | Consistent with the reference | |
Calcium salt | Positive response | Positive response | ||
GC | The main peak retention time consistent with the reference | The main peak retention time consistent with the reference | ||
Water (%,w/w) |
≤3.0 | 2.5 | ||
Loss on drying (%,w/w) |
≤3.0 | 1.7 | ||
Relative Substance (%,area,HPLC) |
Single impurity | ≤0.10 | <0.05 | |
Total impurity | ≤1.0 | <0.05 | ||
Diastereomer (EP Imp.B) |
≤0.15 | <0.05 | ||
EP Imp.A | ≤0.10 | Not detected | ||
5-Keto acid (EP Imp.C) |
≤0.10 | <0.05 | ||
Assay (%, ESTD, HPLC) |
98.0-102.0 | 99.7 | ||
Conclusion | Conforms to Factory Standard |
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