 | C4X-20763 | 110327-29-2 | Impurity | |
| Menaquinone Impurity 3 |
| C4X-207630 | N/A | Impurity | |
| Menaquinone impurity 30 |
| C4X-207631 | N/A | Impurity | |
| Menaquinone impurity 31 |
| C4X-207632 | N/A | Impurity | |
| Menaquinone impurity 32 |
| C4X-207634 | N/A | Impurity | |
| Menaquinone impurity 34 |
| C4X-20764 | 72908-86-2 | Impurity | |
| Menaquinone Impurity 4 |
| C4X-20765 | 77898-97-6?70901-63-2 (mixture) | Impurity | |
| Menaquinone Impurity 5 (Mixture of Isomers) |
 | C4X-20767 | 523-38-6 | Impurity | |
| Menaquinone impurity 7 |
| C4X-20771 | N/A | Impurity | |
| Fenoterol EP Impurity C(Enantiomer Mixture) HBr |
 | C4X-207710 | 391234-97-2 | Impurity | |
| "Fenoterol EP Impurity A (R,S-Isomer)" |
