 | C4X-183524 | 5891-21-4 | Impurity | |
| Hydroxychloroquine Impurity 24 |
 | C4X-183525 | N/A | Impurity | |
| Hydroxychloroquine EP Impurity C Hydrogen sulfate |
| C4X-183526 | N/A | Impurity | |
| Hydroxychloroquine EP Impurity D Hydrogen sulfate |
| C4X-183527 | N/A | Impurity | |
| Hydroxychloroquine EP Impurity F HCl |
| C4X-183528 | N/A | Impurity | |
| Hydroxychloroquine Impurity 28 |
| C4X-183529 | N/A | Impurity | |
| Hydroxychloroquine Impurity 29 |
 | C4X-18353 | 4298-15-1 | Impurity | |
| Hydroxychloroquine EP Impurity C |
| C4X-183530 | N/A | Impurity | |
| Hydroxychloroquine Impurity 30 |
| C4X-183531 | N/A | Impurity | |
| Hydroxychloroquine Impurity 31 |
| C4X-183532 | 106007-99-2 | Impurity | |
| Hydroxychloroquine Impurity 32 |
