| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-139633 | 53242-76-5 | Impurity | |
| Azelastine Impurity 33 | ||||
 | C4X-139634 | 1878-66-6 | Impurity | |
| Azelastine Impurity 34 | ||||
 | C4X-139635 | N/A | Impurity | |
| Azelastine Impurity 35 | ||||
| C4X-139637 | N/A | Impurity | |
| Azelastine Impurity 37 | ||||
| C4X-139638 | 51334-86-2 | Impurity | |
| Azostatin impurity 38 | ||||
| C4X-139639 | N/A | Impurity | |
| Azostatin impurity 39 | ||||
 | C4X-13964 | 53242-88-9 | Impurity | |
| Azelastine EP Impurity D | ||||
| C4X-139643 | N/A | Impurity | |
| Azostatin impurity 43 | ||||
| C4X-139644 | N/A | Impurity | |
| Azelastine Impurity 44 | ||||
| C4X-139645 | 148960-78-5 | Impurity | |
| Azelastine Impurity 45 | ||||
