| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-20442 | 55474-40-3 | Impurity | |
| Pyrimethamine Impurity 2 | ||||
| C4X-20443 | 55474-41-4 | Impurity | |
| Pyrimethamine Impurity 3 | ||||
| C4X-20444 | N/A | Impurity | |
| Pyrimethamine Impurity 4 | ||||
 | C4X-20446 | 2856-63-5 | Impurity | |
| Pyrimethamine Impurity 6 | ||||
 | C4X-204510 | 1421373-98-9 | Impurity | |
| Osimertinib Impurity 10 | ||||
| C4X-204511 | N/A | Impurity | |
| Osimertinib Impurity 11 | ||||
 | C4X-204512 | 2213409-62-0 | Impurity | |
| Osimertinib Impurity 12 | ||||
| C4X-204513 | 2090542-75-7 | Impurity | |
| Osimertinib Impurity 13 | ||||
 | C4X-204514 | 2364486-23-5 | Impurity | |
| Osimertinib Impurity 14 | ||||
| C4X-204515 | 1896788-06-9 | Impurity | |
| Osimertinib Impurity 15 | ||||
