| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-108413 | 53173-70-9 | Impurity | |
| Roflumilast Impurity 13 | ||||
| C4X-108414 | 2206607-17-0 | Impurity | |
| Roflumilast Impurity 14 | ||||
| C4X-108415 | 162401-69-6 | Impurity | |
| Roflumilast impurity 15 | ||||
 | C4X-108416 | 22889-78-7 | Impurity | |
| Roflumilast impurity 16 | ||||
 | C4X-108417 | 151103-09-2 | Impurity | |
| Roflumilast impurity 17 | ||||
| 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 | ||||
