| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-127011 | 51795-31-4 | Impurity | |
| Cefaclor Impurity 11 | ||||
| C4X-127012 | N/A | Impurity | |
| Cefaclor Impurity 12 | ||||
| C4X-127014 | N/A | Impurity | |
| Cefaclor Impurity 14 | ||||
| C4X-127015 | N/A | Impurity | |
| Cefaclor Impurity 15 | ||||
| C4X-127016 | N/A | Impurity | |
| Cefaclor Impurity 16 | ||||
| C4X-127017 | N/A | Impurity | |
| Cefaclor Impurity 17 | ||||
| C4X-127018 | N/A | Impurity | |
| Cefaclor Impurity 18 | ||||
| C4X-127019 | N/A | Impurity | |
| Cefaclor Impurity 19 | ||||
 | C4X-12702 | 53994-69-7 | Impurity | |
| Cefaclor EP Impurity B | ||||
| C4X-127020 | N/A | Impurity | |
| Cefaclor Impurity 20 | ||||
