| Hydroxy Melphalan | 61733-01-5 | Ax-IMP500 |
| 4-chloro-2-(chloromethyl)-3,5-dimethylpyridine | 142885-96-9 | Ax-176 |
| Pyrimethamine Intermediate | 55474-40-3 | Ax-171 |
| tributyl(1-methoxyvinyl)stannane | 81177-90-4 | Ax-172 |
| Methoxyethene | 107-25-5 | Ax-174 |
| (1-methoxyvinyl)lithium | 42722-80-5 | Ax-173 |
| Etoricoxib Impurity | 40061-50-5 | Ax-IMP503 |
| Lidocaine Impurity A | 87-62-7 | Ax-IMP504 |
| Lidocaine Impurity B | 2903-45-9 | Ax-IMP505 |
| Lidocaine Impurity C | 2198-53-0 | Ax-IMP506 |