 | C4X-19938 | N/A | Impurity | |
| Clenbuterol impurity 8 |
| C4X-19941 | 113046-72-3 | Impurity | |
| Prulifloxacin impurity 1 |
 | C4X-19942 | 112984-60-8 | Impurity | |
| Prulifloxacin impurity 2 |
 | C4X-19961 | 745-65-3 | Impurity | |
| Prostaglandin E1 |
 | C4X-199610 | 38873-82-4 | Impurity | |
| Prostaglandin Impurity 10 |
 | C4X-199611 | 27415-25-4 | Impurity | |
| Prostaglandin Impurity 11 |
 | C4X-199612 | 36150-00-2 | Impurity | |
| Prostaglandin Impurity 12 |
 | C4X-199613 | 13367-85-6 | Impurity | |
| Prostaglandin Impurity 13 |
| C4X-199615 | 5307-99-3 | Impurity | |
| Prostaglandin Impurity 15 |
| C4X-199616 | 20836-85-5 | Impurity | |
| Prostaglandin Impurity 16 |
