 | C4X-17806 | 38231-86-6 | Impurity | |
| Voglibose Impurity 6 |
 | C4X-17821 | 94266-17-8 | Impurity | |
| Xylometazoline EP Impurity A |
 | C4X-17823 | 19387-83-8 | Impurity | |
| Xylometazoline EP Impurity B |
 | C4X-17824 | 84803-57-6 | Impurity | |
| Xylometazoline EP Impurity C |
 | C4X-17825 | 14034-59-4 | Impurity | |
| Xylometazoline EP Impurity E |
 | C4X-178314 | 148665-49-0 | Impurity | |
| Zidovudine Impurity 14 |
 | C4X-178315 | 596-31-6 | Impurity | |
| Zidovudine Impurity 15 |
 | C4X-17833 | 65-71-4 | Impurity | |
| Zidovudine EP Impurity C |
 | C4X-17835 | 25526-94-7 | Impurity | |
| Zidovudine EP Impurity B |
 | C4X-178513 | 1196-29-8 | Impurity | |
| Zonisamide Impurity 13 |
