| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-100637 | 372-19-0 | Impurity | |
| Afatinib Impurity 37 | ||||
 | C4X-100638 | 2106-04-9 | Impurity | |
| Afatinib Impurity 38 | ||||
 | C4X-100639 | 1117-71-1 | Impurity | |
| Afatinib Impurity 39 | ||||
| C4X-10064 | N/A | Impurity | |
| Afatinib Impurity 4 | ||||
 | C4X-100641 | 179552-74-0 | Impurity | |
| Afatinib Impurity 41 | ||||
| C4X-100642 | N/A | Impurity | |
| Afatinib impurity 42 | ||||
 | C4X-100643 | 1456696-14-2 | Impurity | |
| Afatinib Impurit 43 | ||||
| C4X-100646 | N/A | Impurity | |
| Afatinib Impurity 46 | ||||
| C4X-100647 | N/A | Impurity | |
| Afatinib Impurity 47 | ||||
| C4X-100648 | 3005278-77-0 | Impurity | |
| Afatinib Impurity 48 | ||||
