| Bortezomib Related Compound G | 1132709-14-8 | Ax-IMP1257 |
| Bortezomib Related Compound D | 114457-94-2 | Ax-IMP1256 |
| Bortezomib Related Compound B | 289472-80-6 | Ax-IMP1255 |
| Sulfamethoxazole Impurity C | 1072-67-9 | Ax-IMP1290 |
| Sulfamethoxazole Impurity E | 63-74-1 | Ax-IMP1291 |
| Sulfamethoxazole Impurity D | 121-57-3 | Ax-IMP1292 |
| Tizanidine EP Impurity A | 51322-69-1 | Ax-IMP1288 |
| Tizanidine EP Impurity B | 51323-05-8 | Ax-IMP1289 |
| Bexarotene Impurity Z | 153559-48-9 | Ax-IMP1286 |
| Bexarotene Impurity 4 | NA | Ax-IMP1284 |