CAS number： 52315-07-8
Molecular formula： C22H19Cl2NO3
molecular weight： 416.3
Chemical structure：
| Test item | Specification | Test result | Note |
| Appearance | yellow to light brown or crystalloid solid | liquid Light Brown liquid | Qualified |
| Content (%) | ≥95.0% | 95.4% | Qualified |
| Moisture (%) | ≤0.2% | 0.06% | Qualified |
| Acidity (H2SO4) | ≤0.2% | 0.08% | Qualified |
