 | C4X-122053 | N/A | Impurity | |
| Metformin impurity 53 |
| C4X-1220531 | N/A | Impurity | |
| Metformin impurity 531 |
| C4X-1220532 | 141-83-3 | Impurity | |
| Metformin Impurity 532 |
| C4X-12206 | 124-40-3 (free base) | Impurity | |
| Metformin EP impurity F Tetrahydrofuran Solution |
 | C4X-12208 | 27369-26-2 | Impurity | |
| Metformin EP Impurity B Dinitrate |
 | C4X-12211 | 1947364-12-6 | Impurity | |
| Cefamandole EP Impurity A(Triethylamine Salt) |
| C4X-122110 | N/A | Impurity | |
| Cefamandole Impurity 10 |
| C4X-122111 | N/A | Impurity | |
| Cefamandole Impurity 11 |
| C4X-122112 | N/A | Impurity | |
| Cefamandole Impurity 12 |
| C4X-122113 | N/A | Impurity | |
| Cefamandole Impurity 13 |
