Product Description:
Items |
Standard |
Test Result |
Appearance |
White crystals or crystalline powder |
White crystalline powder |
Identification |
Infrared absorption |
Conform |
Assay |
98.5% ~ 101.5% |
99.3% |
Residue on ignition |
≤ 0.4% |
< 0.06% |
Sulfate (SO4) |
≤ 0.03% |
< 0.03% |
Iron (Fe) |
≤ 30ppm |
< 30ppm |
Heavy metals (Pb) |
≤ 15ppm |
< 15ppm |
Related compounds |
Not more than 0.5% of any individual impurity is found; Not more than 2.0% of total impurities is found |
Conform |
Specific rotation [ α ] D 25 |
+5.7 °~ +6.8 ° |
+5.9 ° |
Loss on drying |
8.0 ~ 12.0% |
11.1% |
Conclusion |
This batch is conforming with the standard of USP39. |