| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-179418 | 880088-78-8 | Impurity | |
| Fexofenadine Impurity 18 | ||||
| C4X-179419 | N/A | Impurity | |
| Fexofenadine Impurity 19 | ||||
 | C4X-17942 | 479035-75-1 | Impurity | |
| Fexofenadine EP Impurity B | ||||
| C4X-179420 | 96067-93-5 | Impurity | |
| Fexofenadine Impurity 20 | ||||
| C4X-179421 | 162096-54-0 | Impurity | |
| Fexofenadine Impurity 21 | ||||
 | C4X-179423 | 1208313-13-6 | Impurity | |
| Fexofenadine Impurity 23 | ||||
| C4X-179424 | 908595-88-0 | Impurity | |
| Fexofenadine Impurity 24 | ||||
 | C4X-179425 | 174483-06-8 | Impurity | |
| Fexofenadine Impurity 25 | ||||
 | C4X-179426 | 169280-26-6 | Impurity | |
| Fexofenadine Impurity 26 | ||||
| C4X-179427 | 24911-30-6 | Impurity | |
| Fexofenadine Impurity 27 | ||||
