| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-163319 | 866317-77-3 | Impurity | |
| Ertapenem Impurity 19 | ||||
 | C4X-16332 | 724700-26-9 | Impurity | |
| Ertapenem Impurity Pro-maba | ||||
| C4X-163320 | N/A | Impurity | |
| Ertapenem Impurity 20 | ||||
| C4X-163325 | N/A | Impurity | |
| Ertapenem Impurity 25 | ||||
| C4X-163328 | N/A | Impurity | |
| Ertapenem Impurity 28 | ||||
| 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 | ||||
