| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-11251 | 39856-50-3 | Impurity | |
| Palbociclib Impurity 1 | ||||
 | C4X-1125100 | N/A | Impurity | |
| Palbociclib Impurity 100 | ||||
| C4X-1125101 | N/A | Impurity | |
| Palbociclib Impurity 101 | ||||
| C4X-1125102 | N/A | Impurity | |
| Palbociclib Impurity102 | ||||
 | C4X-1125103 | 2270982-31-3 | Impurity | |
| Palbociclib Impurity 103 | ||||
 | C4X-1125104 | 827022-35-5 | Impurity | |
| Palbociclib Impurity 104 | ||||
| C4X-1125106 | N/A | Impurity | |
| Palbociclib Impurity 106 TFA salt | ||||
| C4X-1125107 | N/A | Impurity | |
| Palbociclib Impurity107 | ||||
| C4X-1125108 | N/A | Impurity | |
| Palbociclib Impurity 108 | ||||
 | C4X-1125109 | 1974279-20-3 | Impurity | |
| Palbociclib Impurity 109 | ||||
