CAS number： 50-65-7
Molecular formula： C13H8Cl2N2O4
molecular weight： 327.1196
Chemical structure：
| Name of Product: | Niclosamide Anhydrous | |
| Shelf Life: | 4 years | |
| Specification: | BP2012 | |
| Test Items | Specification | Results of Analysis |
| Appearance | White fine crystals | White find crystals |
| Identity | Positive | Positive |
| Chlorides | 500 ppm Max | Complies |
| 5-Chlorosalicyclic Acid | 60ppm Max | Complies |
| 2-Chloro-4-Nitroaniline | 100ppm Max | Complies |
| Related substances | 0.2% Max | 0.17% |
| Loss on drying | 0.5% Max | 0.12% |
| Sulphated Ash | 0.1% Max | 0.05% |
| Melting Point | 227.0-232.0℃ | 229.-230.3℃ |
| Assay | 98.0%-101.0% | 98.86% |
