| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-107831 | 86028-91-3 | Impurity | |
| Pidotimod Impurity 31 | ||||
 | C4X-107832 | 21282-08-6 | Impurity | |
| Pidotimod Impurity 32 | ||||
 | C4X-107833 | 29227-92-7 | Impurity | |
| Pidotimod Impurity 33 | ||||
| C4X-10784 | N/A | Impurity | |
| Pidotimod Impurity 4 | ||||
| C4X-10785 | N/A | Impurity | |
| Pidotimod Impurity 5 | ||||
 | C4X-10786 | 162148-16-5 | Impurity | |
| Pidotimod impurity 6 | ||||
| C4X-10787 | N/A | Impurity | |
| Pidotimod Impurity 7 | ||||
| C4X-10789 | N/A | Impurity | |
| Pidotimod Impurity 9 | ||||
 | C4X-10791 | 1092578-46-5 | Impurity | |
| Tofacitinib Impurity 1 | ||||
| C4X-107910 | 2097982-05-1 | Impurity | |
| Tofacitinib Impurity 10 | ||||
