 | C4X-18385 | 6293-56-7 | Impurity | |
| Betahistine Impurity 5 |
 | C4X-18386 | 2095467-43-7 | Impurity | |
| Betahistine EP Impurity C |
| C4X-18387 | 5452-87-9 | Impurity | |
| Betahistine EP Impurity C |
| C4X-18391 | N/A | Impurity | |
| Bepotastine N-Oxide Impurity |
| C4X-18392 | 190730-39-3 | Impurity | |
| Bepotastine Ethyl Ester |
| C4X-183921 | N/A | Impurity | |
| Bepotastine Impurity 21 Bromide |
 | C4X-18394 | 210095-58-2 | Impurity | |
| Bepotastine Impurity 4 |
 | C4X-184010 | 41218-84-2 | Impurity | |
| Epinastine Impurity 10 |
 | C4X-184013 | 141342-69-0 | Impurity | |
| Epinastine Impurity 13 HCl |
| C4X-184023 | 439288-43-4 | Impurity | |
| Epinastine Impurity 23 |
