| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-181372 | 1225206-61-0 | Impurity | |
| Butylphthalide Impurity 72 | ||||
| C4X-181375 | 72917-31-8 | Impurity | |
| Butylphthalide Impurity 75 | ||||
 | C4X-18141 | 2410284-89-6 | Impurity | |
| Nintedanib Impurity 1 | ||||
| C4X-1814100 | N/A | Impurity | |
| Nintedanib Impurity 100 TFA | ||||
| C4X-181413 | 1253769-13-9 | Impurity | |
| Nintedanib Impurity 13 | ||||
 | C4X-181414 | 1168150-46-6 | Impurity | |
| Nintedanib Impurity 14 | ||||
| C4X-181419 | N/A | Impurity | |
| Nintedanib Impurity 19 | ||||
 | C4X-18142 | 2410284-90-9 | Impurity | |
| Nintedanib Impurity 2 | ||||
 | C4X-181420 | 2734676-68-5 | Impurity | |
| Nintedanib Impurity 20 | ||||
| C4X-181421 | N/A | Impurity | |
| Nintedanib Impurity 21 | ||||
