| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-108418 | 7051-34-5 | Impurity | |
| Roflumilast impurity 18 | ||||
 | C4X-108419 | 151103-08-1 | Impurity | |
| Roflumilast impurity 19 | ||||
 | C4X-10842 | 1391052-76-8 | Impurity | |
| Roflumilast Impurity 2 | ||||
| C4X-108420 | 2206113-97-3 | Impurity | |
| Roflumilast impurity 20 | ||||
 | C4X-108421 | 162401-78-7 | Impurity | |
| Roflumilast impurity 21 | ||||
| C4X-108422 | 343927-62-8 | Impurity | |
| Roflumilast impurity 22 | ||||
| C4X-108423 | 1369817-76-4 | Impurity | |
| Roflumilast impurity 23 | ||||
 | C4X-108424 | 1895-39-2 | Impurity | |
| Roflumilast impurity 24 | ||||
 | C4X-108425 | 1243391-44-7 | Impurity | |
| Roflumilast impurity 25 | ||||
| C4X-108426 | N/A | Impurity | |
| Roflumilast Impurity 26 | ||||
