| 4-nitrophenyl 4-nitrobenzoate | 1037-31-6 | Ax-14978 |
| 5-chloropicolinic acid | 86873-60-1 | Ax-14977 |
| 2-carboxy-5-chloropyridine 1-oxide | 1415898-80-4 | Ax-14976 |
| 5,6-dichloropicolinic acid | 88912-24-7 | Ax-14975 |
| di-tert-butyldimethoxysilane | 79866-98-1 | Ax-14974 |
| methyl 6-bromopyrazolo[1,5-a]pyridine-3-carboxylate | 1062368-70-0 | Ax-14973 |
| 1-amino-3-bromopyridinium iodide | 36474-98-3 | Ax-14972 |
| 3-aminopropyl hydrogen sulfate | 1071-29-0 | Ax-14971 |
| Tofacitinib impurity P | 1252883-90-1 | Ax-14970 |
| Tofacitinib Impurity 1 | 384337-90-0 | Ax-14969 |