| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106968 | N/A | Impurity | |
| Erlotinib Impurity 68 | ||||
| C4X-106969 | N/A | Impurity | |
| Erlotinib Impurity 69 | ||||
 | C4X-10697 | 882420-21-5 | Impurity | |
| Erlotinib Impurity 7 | ||||
| C4X-106970 | N/A | Impurity | |
| Erlotinib Impurity 70 | ||||
| C4X-106971 | N/A | Impurity | |
| Erlotinib Impurity 71 | ||||
| C4X-106972 | N/A | Impurity | |
| Erlotinib Impurity 72 | ||||
| C4X-106973 | N/A | Impurity | |
| Erlotinib Impurity 73 | ||||
| C4X-106974 | N/A | Impurity | |
| Erlotinib Impurity 74 | ||||
| C4X-106975 | N/A | Impurity | |
| Erlotinib Impurity 75 | ||||
| C4X-106976 | N/A | Impurity | |
| Erlotinib Impurity 76 | ||||
