| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-139616 | 6976-17-6 | Impurity | |
| Azelastine Impurity 16 | ||||
| C4X-139617 | 1239312-56-1 | Impurity | |
| Azelastine Impurity 17 | ||||
| C4X-139618 | N/A | Impurity | |
| Azelastine Impurity 18 | ||||
 | C4X-139619 | 50492-22-3 | Impurity | |
| Azelastine Impurity 19 | ||||
 | C4X-13962 | 110406-94-5 | Impurity | |
| Azelastine EP Impurity B | ||||
| C4X-139620 | 47491-38-3 | Impurity | |
| Azelastine Impurity 20 | ||||
| C4X-139621 | 57676-51-4 | Impurity | |
| Azelastine Impurity 21 | ||||
| C4X-139624 | N/A | Impurity | |
| Azelastine Impurity 24 Oxalate | ||||
 | C4X-139625 | 1346617-06-8 | Impurity | |
| (S)-Azelastine N-Oxide (Mixture of Diastereomers) | ||||
 | C4X-139626 | 1346617-18-2 | Impurity | |
| (R)-Azelastine N-Oxide (Mixture of Diastereomers) | ||||
