 | C4X-21116 | 87-13-8 | Impurity | |
| Nadifloxacin Impurity 6 |
 | C4X-21121 | 50332-56-4 | Impurity | |
| Oxolinic Acid Impurity 1 |
| C4X-21122 | 14205-66-4 | Impurity | |
| Oxolinic Acid Impurity 2 |
| C4X-21131 | N/A | Impurity | |
| Sparfloxacin Impurity 1 |
 | C4X-21132 | 103772-14-1 | Impurity | |
| Sparfloxacin Impurity 2 |
| C4X-21133 | 1348790-48-6 (free acid) | Impurity | |
| Sparfloxacin Impurity 3 Sodium Salt |
| C4X-21134 | N/A | Impurity | |
| Sparfloxacin Impurity 4 |
 | C4X-21141 | 108481-13-6 | Impurity | |
| Camphor Sulfonic Acid Ethyl Ester |
| C4X-21143 | 83603-04-7 | Impurity | |
| Methyl Levocamphorsulfonate |
| C4X-21146 | 46471-67-4 | Impurity | |
| Rac-Methyl Camphorsulfonate |
