| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-10837 | 164726-80-1 | Impurity | |
| Cetirizine EP Impurity G Hydrochloride | ||||
| C4X-10838 | 83881-46-3 | Impurity | |
| Levocetirizine Impurity 8 | ||||
| C4X-10839 | N/A | Impurity | |
| Levocetirizine Impurity 9 | ||||
 | C4X-10841 | 162401-43-6 | Impurity | |
| Roflumilast Impurity 1 | ||||
 | C4X-108410 | 127842-54-0 | Impurity | |
| Roflumilast Impurity 10 | ||||
 | C4X-108411 | 159783-78-5 | Impurity | |
| Roflumilast Impurity 11 | ||||
 | C4X-108412 | 292135-78-5 | Impurity | |
| Roflumilast N-Oxide | ||||
| 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 | ||||
