| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-1079177 | N/A | Impurity | |
| Tofacitinib Impurity 177 | ||||
| C4X-1079178 | 934524-10-4 | Impurity | |
| Tofacitinib Impurity 178 | ||||
| C4X-1079179 | N/A | Impurity | |
| Tofacitinib Impurity 179 HCl | ||||
 | C4X-107918 | 2504210-41-5 | Impurity | |
| Tofacitinib Impurity 18 | ||||
| C4X-1079180 | 100047-45-8 | Impurity | |
| Tofacitinib Impurity 180 | ||||
| C4X-1079181 | N/A | Impurity | |
| Tofacitinib Impurity 181 | ||||
 | C4X-1079182 | 1053228-28-6 | Impurity | |
| Tofacitinib Impurity 182 | ||||
 | C4X-1079183 | 115093-90-8 | Impurity | |
| Tofacitinib Impurity 183 | ||||
| C4X-1079184 | N/A | Impurity | |
| Tofacitinib Impurity 184 | ||||
| C4X-1079186 | 89600-66-8 | Impurity | |
| Tofacitinib Impurity 186 | ||||
