 | C4X-199617 | 63319-59-5 | Impurity | |
| Prostaglandin Impurity 17 |
 | C4X-199618 | 551-11-1 | Impurity | |
| Prostaglandin F2a |
 | C4X-19962 | 21003-46-3 | Impurity | |
| Prostaglandin Impurity 2 |
| C4X-199623 | N/A | Impurity | |
| Prostaglandin Impurity 23 |
| C4X-199624 | N/A | Impurity | |
| Prostaglandin Impurity 24 |
| C4X-199625 | N/A | Impurity | |
| Prostaglandin Impurity 25 |
 | C4X-199626 | 14152-28-4 | Impurity | |
| Alprostadil (Prostaglandin E1) EP Impurity A |
| C4X-199627 | 60203-57-8 | Impurity | |
| Prostaglandin Impurity 27 |
| C4X-199628 | 67786-53-2 | Impurity | |
| Prostaglandin Impurity 28 |
| C4X-199629 | 42935-17-1 | Impurity | |
| Prostaglandin Impurity 29 |
