 | C4X-105853 | 26562-81-2 | Impurity | |
| Memantine impurity 53 |
| C4X-10586 | 356572-08-2 | Impurity | |
| Memantine Related Compound F HCl |
 | C4X-10587 | 707-36-8 | Impurity | |
| Memantine Related Compound C |
 | C4X-10588 | 351329-88-9 | Impurity | |
| Memantine Related Compound E |
| C4X-105910 | N/A | Impurity | |
| Cinacalcet Impurity 10 |
| C4X-105911 | 1271930-15-4?free base? | Impurity | |
| Cinacalcet Impurity 11 |
| C4X-105912 | 253337-60-9?free base? | Impurity | |
| Cinacalcet Impurity 12 |
| C4X-105913 | 2074615-22-6 | Impurity | |
| Cinacalcet Impurity 13 |
 | C4X-105914 | 1217809-88-5 | Impurity | |
| Cinacalcet Impurity 14 |
| C4X-105915 | 1229225-42-6?1229512-52-0?free base?? | Impurity | |
| Cinacalcet Impurity 15 |
