 | C4X-181369 | 879627-88-0 | Impurity | |
| Butylphthalide Impurity 69 |
| C4X-18137 | 122654-56-2 | Impurity | |
| Butylphthalide Impurity 7 |
| 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 |
