| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-151320 | 1021-65-4 | Impurity | |
| Doxofylline Impurity 20 | ||||
| C4X-151321 | N/A | Impurity | |
| Doxofylline Impurity 21 | ||||
 | C4X-151322 | 6632-68-4 | Impurity | |
| Doxofylline Impurity 22 | ||||
| C4X-151323 | 27231-68-1 | Impurity | |
| Doxofylline Impurity 23 | ||||
| C4X-151324 | 17743-04-3 | Impurity | |
| Doxofylline Impurity 24 | ||||
 | C4X-151325 | 6642-31-5 | Impurity | |
| Doxofylline Impurity 25 | ||||
| C4X-151327 | N/A | Impurity | |
| Doxofylline Impurity 27 | ||||
| C4X-151328 | 62637-09-6 | Impurity | |
| Doxofylline Impurity 28 | ||||
| C4X-151329 | 97-97-2 | Impurity | |
| Doxofylline Impurity 29 | ||||
 | C4X-15133 | 1174289-18-9 | Impurity | |
| Doxofylline Impurity 3 | ||||
