CAS number： 15686-71-2
Molecular formula： C16H17N3O4S
molecular weight： 347.39
Chemical structure：
Test Items | Specification | Test Result | ||
| Appearance | White or almost white,crystalline powder | White crystalline powder | ||
| Solubility | Sparingly soluble in water, practically insoluble in ethanol(96%) | Conform | ||
| Identification | IR spectrum should match with that of standard | Conform | ||
| PH | 4.0~5.5 | 4.8 | ||
| Water | 4.0%~8.0%, determined on 0.300g | 5.80% | ||
| Specific Optical Rotation | +149°~+158° ( anhydrous substance ) | +152° | ||
| Assay | 95.0%~102.0% of C16H17N3O4S | 100.20% | ||
| ( anhydrous substance) | ||||
| Related Substances | ||||
| Impurity B | ≤1.0% (compared to the area of the 2nd peak) | <1.0% | ||
| Any Other Impurity | ≤1.0% (compared to the area of the 1st peak) | <1.0% | ||
| Total impurity | ≤3.0% | <3.0% | ||
| Sulphated Ash | ≤0.2%, determined on 1.0g | <0.1% | ||
| N, N-Dimethylaniline | Not more than 20 ppm | Not used in process | ||
| Appending Item | ||||
| Tapped Density (g/ml) | —— | 0.93g/ml | ||
| Conclusion : This product complies as per above BP2010 specifications. | ||||
