Customization: | Available |
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CAS No.: | 58-85-5 |
Formula: | C10h16n2o3s |
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Test items | Method | Specification | Results |
Description and solubility | Visual | Practically white, crystalline powder, Very slightly soluble in water and in alcohol; insoluble in other common organic solvents. | Complies |
Identification : | |||
A. Infrared absorption | USP(197) | To match with the reference IR spectrum | Complies |
B. Specific optical rotation | USP(781S) | Meet the requirements | Complies |
C. HPLC | USP | The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. | Complies |
Assay | HPLC | 97.5%-102.0% | 99.2% |
Related Compounds: | |||
1.Individual impurity | HPLC | NMT1.0% | 0.13% |
2.Total impurities | HPLC | NMT2.0% | 0.13% |
Optical Rotation | USP(781S) | +89°-+93° | +90.5° |
Residual solvents(Toluene) | USP(467) | ≤890mm | <20ppm |
conclusion | This batch complies with the specification of USP41 |