| Iguratimod Intermediate 1 | 149457-03-4 | Ax-IGT01 |
| Ibrutinib Impurity A | 1022150-12-4 | Ax-IMP877 |
| Iguratimod Intermediate 2 | 84594-95-6 | Ax-IGT02 |
| Ibrutinib impurity B | NA | Ax-IMP878 |
| Iguratimod Intermediate 3 | 76838-72-7 | Ax-IGT03 |
| Ibrutinib impurity C | NA | Ax-IMP879 |
| Iguratimod Intermediate 4 | 123664-84-6 | Ax-IGT04 |
| Ibrutinib Impurity E | NA | Ax-IMP880 |
| Iguratimod Intermediate 5 | NA | Ax-IGT05 |
| Ibrutinib impurity F | 79-10-7 | Ax-IMP881 |