| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106961 | 20825-87-0 | Impurity | |
| Erlotinib Impurity 61 | ||||
| C4X-106962 | N/A | Impurity | |
| Erlotinib Impurity 62 | ||||
| C4X-106963 | N/A | Impurity | |
| Erlotinib Impurity 63 | ||||
| C4X-106964 | N/A | Impurity | |
| Erlotinib Impurity 64 | ||||
| C4X-106965 | N/A | Impurity | |
| Erlotinib Impurity 65 | ||||
| C4X-106966 | N/A | Impurity | |
| Erlotinib Impurity 66 | ||||
| C4X-106967 | N/A | Impurity | |
| Erlotinib Impurity 67 | ||||
| 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 | ||||
