| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-107953 | 479633-63-1 | Impurity | |
| Tofacitinib Impurity 53 | ||||
 | C4X-107954 | 6066-82-6 | Impurity | |
| Tofacitinib Impurity 54 | ||||
 | C4X-107955 | 3680-69-1 | Impurity | |
| Tofacitinib Impurity 55 | ||||
 | C4X-107956 | 923036-30-0 | Impurity | |
| Tofacitinib Impurity 56 | ||||
 | C4X-107957 | 477600-70-7 | Impurity | |
| Tofacitinib Impurity 57 | ||||
 | C4X-107958 | N/A | Impurity | |
| Tofacitinib Impurity 58 | ||||
| C4X-107959 | 2250241-69-9 | Impurity | |
| Tofacitinib Impurity 59 | ||||
 | C4X-10796 | 477600-74-1 | Impurity | |
| Tofacitinib Impurity 6 | ||||
 | C4X-107960 | 90213-66-4 | Impurity | |
| Tofacitinib Impurity 60 | ||||
| C4X-107961 | 1821769-41-8 | Impurity | |
| Tofacitinib Impurity 61 | ||||
