| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106977 | N/A | Impurity | |
| Erlotinib Impurity 77 | ||||
| C4X-106978 | 174674-93-2 | Impurity | |
| Erlotinib Impurity 78 | ||||
| C4X-106979 | 382150-30-3 | Impurity | |
| Erlotinib Impurity 79 | ||||
 | C4X-10698 | 183320-29-8 | Impurity | |
| Erlotinib Impurity 8 | ||||
| C4X-106980 | 2518426-66-7 | Impurity | |
| Erlotinib Impurity 80 | ||||
| C4X-106981 | N/A | Impurity | |
| Erlotinib Impurity 81 | ||||
| C4X-106982 | N/A | Impurity | |
| Erlotinib Impurity 82 | ||||
| C4X-106983 | N/A | Impurity | |
| Erlotinib Impurity 83 | ||||
 | C4X-106984 | 16064-15-6 | Impurity | |
| Erlotinib Impurity 84 | ||||
| C4X-106985 | N/A | Impurity | |
| Erlotinib Impurity 85 | ||||
