| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-107218 | N/A | Impurity | |
| Bortezomib Impurity 18 | ||||
| C4X-107219 | N/A | Impurity | |
| Bortezomib Impurity 19 | ||||
 | C4X-10722 | 114457-94-2 | Impurity | |
| Bortezomib Impurity 2 | ||||
 | C4X-107220 | 862894-96-0 | Impurity | |
| Bortezomib Impurity 20 | ||||
 | C4X-107221 | 18680-27-8 | Impurity | |
| Bortezomib Impurity 21 | ||||
| C4X-107224 | N/A | Impurity | |
| Bortezomib Impurity 24 | ||||
| C4X-107226 | N/A | Impurity | |
| Bortezomib Impurity 26 | ||||
| C4X-107227 | N/A | Impurity | |
| Bortezomib Impurity 27 | ||||
 | C4X-107228 | 205393-22-2 | Impurity | |
| Bortezomib Impurity 28 | ||||
| C4X-107229 | N/A | Impurity | |
| Bortezomib Impurity 29 | ||||
