| Vildagliptin carbonitrile Impurity | 875314-89-9 | Ax-IMP2919 |
| 2-hydroxy-N-(pyridin-4-yl)butanamide | 1864897-67-5 | Ax-9204 |
| N,N'-di(pyridin-4-yl)methanediamine | 4589-32-6 | Ax-9203 |
| 4-(1-nitrosohydrazinyl)benzoic acid | NA | Ax-9202 |
| 1-(4-amino-2,3-dichlorophenyl)ethan-1-one | 1260893-49-9 | Ax-9181 |
| 3,5-dichlorothiophene-2-carboxylic acid | 89166-94-9 | Ax-9182 |
| 3,4-dichlorothiophene-2-carboxylic acid | 61209-02-7 | Ax-9183 |
| 2-chlorothiophene-3-carboxylic acid | 53935-71-0 | Ax-9184 |
| 2-bromo-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine | 143150-92-9 | Ax-9185 |
| 2-carboxyquinoline 1-oxide | 3297-64-1 | Ax-9198 |