| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-11014 | N/A | Impurity | |
| Linagliptin Impurity 4 | ||||
| C4X-110140 | N/A | Impurity | |
| Linagliptin Impurity 40 | ||||
| C4X-110141 | 2074688-84-7 | Impurity | |
| Linagliptin Impurity 41 | ||||
 | C4X-110142 | 2074688-81-4 | Impurity | |
| Linagliptin Impurity 42 | ||||
 | C4X-110143 | 886588-63-2 | Impurity | |
| Linagliptin Impurity 43 | ||||
| C4X-110144 | N/A | Impurity | |
| Linagliptin Impurity 44 | ||||
| C4X-110145 | N/A | Impurity | |
| Linagliptin Impurity 45 | ||||
 | C4X-110146 | 668273-75-4 | Impurity | |
| Linagliptin Impurity 46 | ||||
 | C4X-110147 | 2468656-63-3 | Impurity | |
| Linagliptin Impurity 47 | ||||
 | C4X-110148 | 853029-57-9 | Impurity | |
| Linagliptin Impurity 48 | ||||
