| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-136744 | N/A | Impurity | |
| Metoprolol Impurity 44 | ||||
| C4X-136745 | N/A | Impurity | |
| Metoprolol impurity 45 | ||||
 | C4X-13675 | 163685-38-9 | Impurity | |
| Metoprolol EP Impurity E | ||||
 | C4X-13676 | 7695-63-8 | Impurity | |
| Metoprolol EP Impurity F | ||||
 | C4X-13677 | 501-94-0 | Impurity | |
| Metoprolol EP Impurity G | ||||
 | C4X-13678 | 62572-94-5 | Impurity | |
| Metoprolol EP Impurity H | ||||
 | C4X-13681 | 142843-04-7 | Impurity | |
| Diltiazem N-oxide | ||||
 | C4X-136810 | 130606-60-9 | Impurity | |
| Diltiazem EP Impurity D HCl | ||||
| C4X-136811 | 81353-09-5 | Impurity | |
| O-Desacetyl-N-desmethyl diltiazem | ||||
| C4X-136812 | 115992-91-1(Free Base) | Impurity | |
| Diltiazem USP related compound H HCl | ||||
