| 2-(3-chloro-2-hydroxypropyl)isoindoline-1,3-dione | 19667-37-9 | Ax-1154 |
| 2-(2,3-dihydroxypropyl)isoindoline-1,3-dione | 62457-35-6 | Ax-1153 |
| 2-(2-hydroxy-3-methoxypropyl)isoindoline-1,3-dione | 872815-02-6 | Ax-1119 |
| Fexofenadine Impurity 4 | 6952-91-6 | Ax-IMP2873 |
| Fexofenadine Impurity 3 | 162096-54-0 | Ax-IMP2872 |
| Fexofenadine Process Impurity 2 | 169032-11-5 | Ax-IMP2871 |
| Fexofenadine Process Impurity 1 | 18755-52-7 | Ax-IMP2870 |
| Fexofenadine Impurity 2 | 169280-26-6 | Ax-IMP2869 |
| Fexofenadine N-Oxide | 1422515-52-3 | Ax-IMP2868 |
| Gabapentin Impurity 1 | 6700-95-4 | Ax-IMP2867 |