 | C4X-196242 | 608-89-9 (free acid) | Impurity | |
| Varenicline Impurity 42 Sodium Salt |
 | C4X-19625 | 950781-89-2 | Impurity | |
| Varenicline Impurity 5 |
| C4X-19631 | N/A | Impurity | |
| Erdosteine Impurity 1 Sodium Salt(Mixture of Diastereomers) |
 | C4X-19634 | 1667709-77-4 | Impurity | |
| Erdosteine Methyl Ester |
| C4X-19638 | N/A | Impurity | |
| Erdosteine Impurity 8 |
 | C4X-19641 | 38344-08-0 | Impurity | |
| Bimatoprost Acid |
 | C4X-196410 | 38315-47-8 | Impurity | |
| Bimatoprost Acid Methyl Ester |
| C4X-196417 | N/A | Impurity | |
| Bimatoprost Impurity 17 (Mixture of Diastereomers) |
 | C4X-19642 | 1163135-96-3 | Impurity | |
| 15-Keto Bimatoprost |
 | C4X-196420 | 1648894-84-1 | Impurity | |
| Bimatoprost Impurity 20 |
