CAS number： 31430-15-6
Molecular formula： C16H12FN3O3
molecular weight： 313.2832
Chemical structure：
| Material name | Flubendazole | |
| Shelf life | 3 years | |
| Test | Specification | Test result |
| Appearacnce | A white or almost white powder | Almost white powder |
| Identification | Ir spectrum of sample complies with Rs | Comforms |
| Relates substance | Impurity A ≤0.25% | 0.09% |
| Impurity B ≤0.25% | 0.17% | |
| Impurity C ≤0.25% | 0.19% | |
| Impurity E ≤0.25% | 0.08% | |
| Impurity F ≤0.25% | 0.15% | |
| Impurity G ≤0.25% | 0.25% | |
| Loss or drying | ≤0.5% | 0.40% |
| Heavy metals | <20ppm< | complies |
| Sulphated ash | ≤0.1% | 0.06% |
| Assay | 99.0%-101.0% | 99.6% |
| Conclusion | The products complies with the standard of EP 6 | |
