| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106948 | 2055840-54-3 | Impurity | |
| Erlotinib Impurity 48 | ||||
 | C4X-106949 | 950596-58-4 | Impurity | |
| Erlotinib Impurity 49 | ||||
 | C4X-10695 | 328528-74-1 | Impurity | |
| Erlotinib Impurity 5 | ||||
| C4X-106950 | 950596-59-5 | Impurity | |
| Erlotinib Impurity 100 | ||||
| C4X-106951 | N/A | Impurity | |
| Erlotinib Impurity 51 | ||||
 | C4X-106952 | 236750-62-2 | Impurity | |
| Erlotinib Impurity 52 | ||||
 | C4X-106953 | 183365-34-6 | Impurity | |
| Erlotinib Impurity 53 | ||||
| C4X-106954 | N/A | Impurity | |
| Erlotinib Impurity 54 | ||||
| C4X-106955 | 2410548-57-9 | Impurity | |
| Erlotinib Impurity 55 | ||||
| C4X-106956 | N/A | Impurity | |
| Erlotinib Impurity 56 | ||||
