| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-108427 | 74976-40-2 | Impurity | |
| Roflumilast Impurity 27 | ||||
| C4X-108428 | 2368178-29-2 | Impurity | |
| Roflumilast Impurity 28 | ||||
| C4X-108429 | N/A | Impurity | |
| Roflumilast Impurity 29 | ||||
 | C4X-10843 | 1391052-24-6 | Impurity | |
| Roflumilast Impurity 3 | ||||
| C4X-108430 | 34809-82-0 | Impurity | |
| Roflumilast Impurity 30 | ||||
| C4X-108431 | 268225-79-2 | Impurity | |
| Roflumilast Impurity 31 | ||||
| C4X-108432 | 1454574-39-0 | Impurity | |
| Roflumilast Impurity 32 | ||||
| C4X-108433 | 2376345-94-5 | Impurity | |
| Roflumilast Impurity 33 | ||||
| C4X-108434 | 1882067-44-8 | Impurity | |
| Roflumilast Impurity 34 | ||||
 | C4X-10844 | 162401-30-1 | Impurity | |
| Roflumilast Impurity 4 | ||||
