 | C4X-14582 | 22407-20-1 | Impurity | |
| Allopurinol EP Impurity B |
 | C4X-14583 | 1346604-13-4 | Impurity | |
| Allopurinol EP Impurity C |
 | C4X-14584 | 6994-25-8 | Impurity | |
| Allopurinol EP Impurity D |
 | C4X-14585 | 31055-19-3 | Impurity | |
| Allopurinol EP Impurity E |
 | C4X-14587 | 321571-07-7 | Impurity | |
| Allopurinol Impurity 7(Allopurinol Impurity F) |
 | C4X-14588 | 5334-31-6 | Impurity | |
| Allopurinol EP Impurity A |
 | C4X-14589 | 41621-10-7 | Impurity | |
| Allopurinol Impurity 9 |
 | 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 |
