| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-151321 | N/A | Impurity | |
| Doxofylline Impurity 21 | ||||
 | C4X-151322 | 6632-68-4 | Impurity | |
| Doxofylline Impurity 22 | ||||
 | C4X-151325 | 6642-31-5 | Impurity | |
| Doxofylline Impurity 25 | ||||
| C4X-151327 | N/A | Impurity | |
| Doxofylline Impurity 27 | ||||
| C4X-151329 | 97-97-2 | Impurity | |
| Doxofylline Impurity 29 | ||||
 | C4X-15133 | 1174289-18-9 | Impurity | |
| Doxofylline Impurity 3 | ||||
| C4X-151331 | N/A | Impurity | |
| Doxofylline Impurity 31 | ||||
| C4X-151333 | N/A | Impurity | |
| Doxofylline Impurity 33 | ||||
| C4X-15134 | 2095554-12-2 | Impurity | |
| Doxofylline Impurity 4 | ||||
| C4X-151341 | N/A | Impurity | |
| Doxofylline Impurity 41 | ||||
