 | C4X-14589 | 41621-10-7 | Impurity | |
| Allopurinol Impurity 9 |
| C4X-14591 | N/A | Impurity | |
| Misoprostol EP Impurity A |
| C4X-14592 | N/A | Impurity | |
| Misoprostol EP Impurity B |
 | C4X-14593 | 58682-86-3 | Impurity | |
| Misoprostol EP Impurity C (mixture of isomers) |
 | C4X-14594 | 1788085-79-9 | Impurity | |
| Misoprostol EP Impurity D (Mixture of Enantiomers) |
 | C4X-14595 | 58717-36-5 | Impurity | |
| Misoprostol EP Impurity E |
| C4X-14596 | 41138-61-8 | Impurity | |
| Misoprostol EP Impurity F |
 | C4X-14601 | 719-59-5 | Impurity | |
| Alprazolam EP Impurity E |
| C4X-146010 | N/A | Impurity | |
| Alprazolam EP Impurity D |
 | C4X-146011 | 38150-27-5 | Impurity | |
| Alprazolam Impurity 11 |
