 | C4X-163329 | 1150883-75-2 | Impurity | |
| Ertapenem Impurity 29 |
 | C4X-163332 | 1199797-42-6 | Impurity | |
| Ertapenem Impurity 32 |
| C4X-163333 | 1199797-43-7&402955-37-7 (mixture) | Impurity | |
| Ertapenem Impurity 33 |
| C4X-163339 | N/A | Impurity | |
| Etapenem lmpurity 39 |
 | C4X-163340 | 74288-40-7 | Impurity | |
| Etapenem Impurity 40 |
| C4X-163341 | 90822-24-5 | Impurity | |
| Etapenem lmpurity 40 |
 | C4X-16339 | 402955-37-7 | Impurity | |
| Ertapenem Impurity 9 |
 | C4X-16361 | 791-69-5 | Impurity | |
| Estradiol EP Impurity D |
 | C4X-163610 | 1229-24-9 | Impurity | |
| Estradiol Impurity 10 |
 | C4X-163612 | 571-92-6 | Impurity | |
| Estradiol Impurity 12 |
