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. |