| 1,3,5 -trimethyl biuret | 816-00-2 | Ax-904 |
| Piracetam Impurity C | 61516-73-2 | Ax-IMP1393 |
| pent-4-enoyl chloride | 591-80-0 | Ax-905 |
| Lenvatinib Process Impurity 1 | 417722-95-3 | Ax-IMP1390 |
| 2-bromo-5-methylpyridin-3-ol | 1003711-30-5 | Ax-933 |
| Lenvatinib Impurity 9 | 417719-51-8 | Ax-IMP1386 |
| dimethyl pyrazine-2,3-dicarboxylate | 6164-77-8 | Ax-935 |
| Lenvatinib Impurity 5 | 417717-20-5 | Ax-IMP1388 |
| pyrazine-2,3-dicarboxamide | 6164-78-9 | Ax-936 |
| Lenvatinib Impurity 4 | 417717-04-5 | Ax-IMP1385 |