 | C4X-132510 | 1708930-15-7 | Impurity | |
| Aclidinium bromide Impurity 10 |
| C4X-132511 | N/A | Impurity | |
| Aclidinium bromide Impurity 11 |
| C4X-132512 | 320347-97-5 | Impurity | |
| Aclidinium bromide Impurity 12 |
| C4X-13252 | 7333-07-5 | Impurity | |
| Aclidinium bromide Impurity 2 |
 | C4X-13253 | 4746-63-8 | Impurity | |
| Tiotropium EP Impurity A |
| C4X-13254 | 28569-88-2 | Impurity | |
| Aclidinium bromide Impurity 4 |
 | C4X-13255 | 26447-85-8 | Impurity | |
| Tiotropium EP Impurity E |
| C4X-13256 | N/A | Impurity | |
| Aclidinium bromide Impurity 6 |
| C4X-13257 | N/A | Impurity | |
| Aclidinium bromide Impurity 7 |
| C4X-13258 | 4075-58-5 | Impurity | |
| Aclidinium bromide Impurity 8 |
