| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-100940 | 2055542-18-0 | Impurity | |
| Apremilast Impurity 40 | ||||
 | C4X-100941 | 1450657-31-4 | Impurity | |
| Apremilast Impurity 41 | ||||
 | C4X-100942 | 6296-53-3 | Impurity | |
| Apremilast Impurity 42 | ||||
 | C4X-100944 | 2096492-44-1 | Impurity | |
| Apremilast Impurity 44 | ||||
| C4X-100945 | N/A | Impurity | |
| Apremilast Impurity 45 | ||||
| C4X-100946 | N/A | Impurity | |
| Apremilast Impurity 46 | ||||
 | C4X-100947 | 1956-36-1 | Impurity | |
| Apremilast Impurity 47 | ||||
 | C4X-100948 | 1450657-28-9 | Impurity | |
| Apremilast Impurity 48 | ||||
| C4X-100949 | N/A | Impurity | |
| Apremilast Impurity 49 | ||||
 | C4X-100951 | 2097600-16-1 | Impurity | |
| Apremilast Impurity 51 | ||||
