| Landiolol Impurity | 947674-94-4 | Ax-IMP1953 |
| Olmesartan Impurity | 144690-07-3 | Ax-IMP1954 |
| Olmesartan Process Impurity 1 | 144690-06-2 | Ax-IMP1955 |
| Olmesartan Process Impurity 2 | 1025972-83-1 | Ax-IMP1956 |
| 4-chloro exemestane impurity | 107868-36-0 | Ax-IMP1957 |
| Exemestane process Impurity 1 | 115936-70-4 | Ax-IMP1958 |
| Exemestane process Impurity 2 | 115936-71-5 | Ax-IMP1959 |
| Nicorandil Impurity | NA | Ax-IMP1960 |
| Primapterin Impurity | 123168-30-9 | Ax-IMP1743 |
| L-arabinose phenylhydrazone | 42015-07-6; 622-12-8 | Ax-IMP1744 |