| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-110118 | 668273-74-3 | Impurity | |
| Linagliptin Impurity 18 | ||||
| C4X-110119 | N/A | Impurity | |
| Linagliptin impurity 19 | ||||
| C4X-11012 | 2518331-40-1 | Impurity | |
| Linagliptin Impurity 2 | ||||
| C4X-110125 | N/A | Impurity | |
| Linagliptin Impurity 25 | ||||
| C4X-110126 | N/A | Impurity | |
| Linagliptin Impurity 26 | ||||
| C4X-110127 | 56700-70-0 | Impurity | |
| Linagliptin Impurity 27 | ||||
 | C4X-110128 | 93703-24-3 | Impurity | |
| Linagliptin Impurity 28 | ||||
 | C4X-110129 | 1911621-52-7 | Impurity | |
| Linagliptin Impurity 29 | ||||
| C4X-11013 | N/A | Impurity | |
| Linagliptin Impurity 3 | ||||
| C4X-110130 | N/A | Impurity | |
| Linagliptin Impurity 30 | ||||
