| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106989 | N/A | Impurity | |
| Erlotinib Impurity 89 | ||||
| C4X-10699 | 183320-12-9 | Impurity | |
| Erlotinib Impurity 9 | ||||
 | C4X-106990 | 1809951-10-7 | Impurity | |
| Erlotinib Impurity 90 | ||||
| C4X-106991 | 1354727-63-1 | Impurity | |
| Erlotinib Impurity 91 | ||||
 | C4X-106992 | 183321-86-0 | Impurity | |
| Erlotinib Impurity 92 | ||||
 | C4X-106994 | 183320-19-6 | Impurity | |
| Erlotinib Impurity 94 | ||||
| C4X-106995 | 183320-04-9 | Impurity | |
| Erlotinib Impurity 95 | ||||
| C4X-106996 | N/A | Impurity | |
| Erlotinib Impurity 96 | ||||
 | C4X-106997 | 1012057-39-4 | Impurity | |
| Erlotinib Impurity 97 | ||||
| C4X-106998 | N/A | Impurity | |
| Erlotinib Impurity 98 | ||||
