| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-193560 | N/A | Impurity | |
| Roflumilast Impurity 60 | ||||
| C4X-193561 | N/A | Impurity | |
| Roflumilast Impurity 61 | ||||
| C4X-193562 | N/A | Impurity | |
| Roflumilast Impurity 62 | ||||
| C4X-19357 | N/A | Impurity | |
| Vilanterol Impurity 7 | ||||
 | C4X-19361 | 6628-04-2 | Impurity | |
| Dequalinium EP Impurity A | ||||
| C4X-193610 | N/A | Impurity | |
| Dequalinium Impurity 10 | ||||
 | C4X-193613 | 634-38-8 | Impurity | |
| Dequalinium Impurity 13 | ||||
| C4X-193614 | N/A | Impurity | |
| Dequalinium Impurity 14 | ||||
| C4X-193615 | 15821-13-3 | Impurity | |
| Dequalinium Impurity 15 | ||||
| C4X-19362 | N/A | Impurity | |
| Dequalinium EP Impurity B Iodide | ||||
