| 1-Ethyl-3-vinylbenzene | 7525-62-4 | Ax-348 |
| Gefitinib Process Impurity | 675126-27-9 | Ax-IMP1922 |
| Gefitinib Impurity | NA | Ax-IMP1921 |
| Didesmethyl desvenlafaxine | 149289-29-2 | Ax-IMP1920 |
| Timolol Process Impurity | 194861-99-9 | Ax-IMP1919 |
| Timolol Impurity B | 59697-06-2 | Ax-IMP1918 |
| Penciclovir Reference Standard | 39809-25-1 | Ax-IMP1913 |
| Penciclovir Impurity B | 97845-80-2 | Ax-IMP1914 |
| Penciclovir Impurity C | 97845-72-2 | Ax-IMP1915 |
| Penciclovir Impurity D | 172529-94-1 | Ax-IMP1916 |