| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-106932 | 236750-65-5 | Impurity | |
| Erlotinib Impurity 32 | ||||
| C4X-106933 | 80407-64-3 | Impurity | |
| Erlotinib Impurity 33 | ||||
 | C4X-106934 | 183322-17-0 | Impurity | |
| Erlotinib Impurity 34 | ||||
| C4X-106935 | N/A | Impurity | |
| ErlotiniB impurity 35 | ||||
| C4X-106936 | N/A | Impurity | |
| ErlotiniB impurity 36 | ||||
| C4X-106937 | N/A | Impurity | |
| ErlotiniB impurity 37 | ||||
 | C4X-106938 | 574738-66-2 | Impurity | |
| Erlotinib Impurity 38 | ||||
| C4X-106939 | N/A | Impurity | |
| Erlotinib Impurity 39 | ||||
| C4X-10694 | N/A | Impurity | |
| Erlotinib Impurity 4 | ||||
 | C4X-106940 | 591-19-5 | Impurity | |
| Erlotinib Impurity 40 | ||||
