| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-107999 | 1629858-78-1 (free base) | Impurity | |
| Tofacitinib Related Compound 99 HCl | ||||
 | C4X-10801 | 325855-74-1 | Impurity | |
| Etoricoxib Impurity 1 | ||||
 | C4X-108010 | 646459-45-2 | Impurity | |
| Etoricoxib Impurity 10 | ||||
| C4X-108011 | N/A | Impurity | |
| Etoricoxib Impurity 11 | ||||
| C4X-108012 | N/A | Impurity | |
| Etoricoxib Impurity 12 | ||||
 | C4X-108013 | 1350206-14-2 | Impurity | |
| Etoricoxib Impurity 13 | ||||
 | C4X-108014 | 307531-95-9 | Impurity | |
| Etoricoxib Impurity 14 | ||||
 | C4X-108015 | 307531-96-0 | Impurity | |
| Etoricoxib Impurity 15 | ||||
 | C4X-108016 | 90536-66-6 | Impurity | |
| EtoricoxiB impurity 16 | ||||
| C4X-108017 | 292067-97-1 | Impurity | |
| Etoricoxib Impurity 17 | ||||
