| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-1079156 | 2102040-00-4 | Impurity | |
| Tofacitinib Impurity 156 | ||||
| C4X-1079157 | N/A | Impurity | |
| Tofacitinib Impurity 157 | ||||
| C4X-1079158 | N/A | Impurity | |
| Tofacitinib Impurity 158 | ||||
| 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 | ||||
