 | C4X-115725 | N/A | Impurity | |
| Dextromethorphan EP Impurity D Picrate |
| C4X-115729 | 367520-37-4 | Impurity | |
| Dextromethorphan Impurity 29 |
 | C4X-11573 | 57969-05-8 | Impurity | |
| Dextromethorphan EP Impurity C |
| C4X-115730 | 367520-36-3 | Impurity | |
| Dextromethorphan Impurity 30 |
| C4X-115731 | 23974-90-5 | Impurity | |
| Dextromethorphan Impurity 31 |
| C4X-115732 | 51072-36-7 | Impurity | |
| Dextromethorphan Impurity 32 |
| C4X-115733 | 89511-04-6 | Impurity | |
| Dextromethorphan Impurity 33 |
| C4X-115734 | 113951-05-6 | Impurity | |
| "(R,R,R)-Dextromethorphan N-Oxide" |
| C4X-115735 | 63477-91-8 | Impurity | |
| (±)-N-Formyl Octabase |
| C4X-115736 | N/A | Impurity | |
| Dextromethorphan Impurity 36 |
