  | C4X-14242 | 19804-27-4 | Impurity |  | 
| Diphenhydramine EP Impurity B | 
  | C4X-14243 | 1808-12-4 | Impurity |  | 
| Diphenhydramine EP Impurity C HCl | 
  | C4X-14244 | 4024-34-4 | Impurity |  | 
| Diphenhydramin EP Impurity B HCl (Dimenhydrinate EP Impurity G HCl) | 
  | C4X-14245 | 53499-40-4 | Impurity |  | 
| Diphenhydramine EP Impurity A HCl | 
  | C4X-14246 | 3922-74-5 | Impurity |  | 
| Diphenhydramine N-Oxide | 
  | C4X-14249 | N/A | Impurity |  | 
| Diphenhydramine impurity 9 | 
  | C4X-14251 | 23551-25-9 | Impurity |  | 
| Amiodarone EP Impurity A | 
  | C4X-142510 | 1397201-93-2 | Impurity |  | 
| Amiodarone EP Impurity C | 
  | C4X-142511 | 95820-13-6 | Impurity |  | 
| Amiodarone EP Impurity A HCl | 
  | C4X-142512 | 4265-27-4 | Impurity |  | 
| Amiodarone Impurity 12 |