Artemisinin Artemisinin 99% Artemether
Characteristic |
Colorless needle crystalline; Bitter-tasting |
Solubility |
Should meet the requirements |
Melting Point |
150-153℃ |
Specific Rotation |
+75º - +78º |
Chemical reaction (1) |
Purple immediately |
Chemical reaction (2) |
Deep purple immediately |
Retention time |
The same of retention time |
IR |
Infrared absorption spectra |
Related Substances by TLC |
Should be conformed |
Loss on drying |
≤0.5% |
Residue on Ignition |
≤0.1% |
Assay by HPLC |
≥99.0% |
Clarity |
< 1 |
Related substances by HPLC |
Individual impurity ≤3% Total impurity ≤5% |
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