| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-1079159 | 1640971-51-2 | Impurity | |
| Tofacitinib Impurity 159 | ||||
 | C4X-107916 | 2328165-36-0 | Impurity | |
| Tofacitinib Impurity 16 | ||||
| C4X-1079160 | N/A | Impurity | |
| Tofacitinib Impurity 160 | ||||
| C4X-1079161 | 1638499-36-1 | Impurity | |
| Tofacitinib Impurity 161 | ||||
| C4X-1079162 | N/A | Impurity | |
| Tofacitinib Impurity 162 | ||||
| C4X-1079163 | N/A | Impurity | |
| Tofacitinib Impurity 163 | ||||
 | C4X-1079164 | 71607-31-3 | Impurity | |
| Tofacitinib Impurity 164 | ||||
| C4X-1079165 | N/A | Impurity | |
| Tofacitinib Impurity 165 | ||||
| C4X-1079166 | N/A | Impurity | |
| Tofacitinib Impurity 166 DiHCl | ||||
| C4X-1079167 | N/A | Impurity | |
| Tofacitinib Impurity 167 | ||||
