| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-1079117 | 873-83-6 | Impurity | |
| Tofacitinib Impurity 117 | ||||
 | C4X-1079118 | 1615709-89-1 | Impurity | |
| Tofacitinib Impurity 118 | ||||
| C4X-1079119 | 2407039-29-4 | Impurity | |
| Tofacitinib Impurity 119 | ||||
 | C4X-107912 | 477600-76-3 | Impurity | |
| Tofacitinib Impurity 12 | ||||
| C4X-1079120 | N/A | Impurity | |
| Tofacitinib Impurity 120 | ||||
 | C4X-1079121 | 1228879-37-5 | Impurity | |
| Tofacitinib Impurity 121 | ||||
 | C4X-1079123 | 1062580-52-2 | Impurity | |
| Tofacitinib Impurity 123 DiHCl | ||||
| C4X-1079124 | 14446-71-0 | Impurity | |
| Tofacitinib Impurity 124 | ||||
| C4X-1079125 | 861020-12-4 | Impurity | |
| Tofacitinib Impurity 125 HCl | ||||
| C4X-1079126 | 384338-23-2 | Impurity | |
| Tofacitinib Impurity 126 | ||||
