 | C4X-204610 | N/A | Impurity | |
| Ketotifen Impurity 10 HCl |
| C4X-204611 | N/A | Impurity | |
| Ketotifen Impurity 11 HCl |
| C4X-204613 | 34580-09-1 | Impurity | |
| Ketotifen EP Impurity F (Mixture of Enol and Ketone) |
| C4X-204614 | N/A | Impurity | |
| Ketotifen Impurity 14 |
| C4X-204615 | N/A | Impurity | |
| Ketotifen Impurity 15 |
| C4X-204616 | N/A | Impurity | |
| Ketotifen Impurity 16 |
| C4X-204617 | N/A | Impurity | |
| Ketotifen Impurity 17 HCl |
 | C4X-204618 | 5570-77-4 | Impurity | |
| Ketotifen Impurity 18 |
| C4X-204619 | 34580-20-6 | Impurity | |
| Ketotifen Impurity 19 |
 | C4X-20462 | 59743-88-3 | Impurity | |
| Ketotifen EP Impurity B (Enantiomer Mixture) |
