 | C4X-151411 | N/A | Impurity | |
| Norepinephrine Impurity 11 |
| C4X-151412 | N/A | Impurity | |
| Norepinephrine Impurity 12 |
| C4X-151413 | 63704-55-2 | Impurity | |
| Norepinephrine Impurity 13 |
| C4X-151414 | 2948-15-4 | Impurity | |
| Norepinephrine Impurity 14 |
| C4X-151415 | 29477-55-2 | Impurity | |
| Norepinephrine Impurity 15 |
| C4X-151417 | N/A | Impurity | |
| Norepinephrine Impurity 17 |
| C4X-151418 | N/A | Impurity | |
| Norepinephrine Impurity 18 |
| C4X-151419 | N/A | Impurity | |
| Norepinephrine Impurity 19 |
| C4X-151420 | 67896-55-3 | Impurity | |
| Norepinephrine Impurity 20 |
 | C4X-151421 | 490-89-1 | Impurity | |
| Norepinephrine Impurity 21 |
