| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106984 | 16064-15-6 | Impurity | |
| Erlotinib Impurity 84 | ||||
 | C4X-106985 | N/A | Impurity | |
| Erlotinib Impurity 85 | ||||
| C4X-106986 | N/A | Impurity | |
| Erlotinib Impurity 86 | ||||
| C4X-106987 | N/A | Impurity | |
| Erlotinib Impurity 87 | ||||
| C4X-106988 | 18193-72-1 | Impurity | |
| Erlotinib Impurity 88 | ||||
| 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 | ||||
