| 1-(5-hydroxy-2,4-dimethylphenyl)ethan-1-one | 103323-25-7 | Ax-16499 |
| 5,7-dioxa-6-thiaspiro[2.5]octane 6-oxide | 89729-09-9 | Ax-16498 |
| ((1-(Bromomethyl)cyclopropyl)methoxy)(tert-butyl)dimethylsilane | 1427504-02-6 | Ax-16497 |
| (1-(((tert-Butyldimethylsilyl)oxy)methyl)cyclopropyl)methanol | 737790-46-4 | Ax-16496 |
| Upadacitinib Impurity 8 | 1428243-23-5 | Ax-16495 |
| Upadacitinib Impurity 7 | 1869118-25-1 | Ax-16494 |
| Upadacitinib Impurity 6 | 2095311-48-9 | Ax-16493 |
| Upadacitinib Impurity 5 | 2095311-47-8 | Ax-16492 |
| Upadacitinib Impurity 4 | 2095311-46-7 | Ax-16491 |
| Upadacitinib Impurity 3 | 1821826-28-1 | Ax-16490 |