| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-204521 | 2919324-15-3 | Impurity | |
| Osimertinib Impurity 21 | ||||
| C4X-204522 | N/A | Impurity | |
| Osimertinib Impurity 22 | ||||
| C4X-20457 | 2919324-18-6 | Impurity | |
| Osimertinib Impurity 7 | ||||
 | C4X-20458 | 1421372-66-8 | Impurity | |
| Osimertinib Impurity 8 | ||||
 | C4X-20461 | 4673-38-5 | Impurity | |
| Ketotifen EP Impurity A | ||||
 | C4X-204618 | 5570-77-4 | Impurity | |
| Ketotifen Impurity 18 | ||||
 | C4X-20462 | 59743-88-3 | Impurity | |
| Ketotifen EP Impurity B (Enantiomer Mixture) | ||||
 | C4X-20463 | 126939-27-3 | Impurity | |
| Ketotifen EP Impurity C | ||||
| C4X-20464 | 88456-70-6 | Impurity | |
| Ketotifen EP Impurity D | ||||
 | C4X-20465 | 1346603-71-1 | Impurity | |
| Ketotifen EP Impurity E | ||||
