Item | Specification | |
Appearance | White to practically white, crystalline powder. | |
Identification | A: IR B:UV | |
Melting point | Melts at about 215 , | |
Solubility | Very slightly soluble in water and in ether; sparingly soluble in acetone and in alcohol; slightly soluble in chloroform. | |
Specific rotation | +150o~+ 156o | |
Loss on drying | ≤1.0% | |
Residue on ignition | Negligible | |
Chromatographic purity | Any individual impurity | ≤0.5% |
Total impurities | ≤2.0% | |
Assay | 97.0%~102.0% |