| Paliperidone Impurity | NA | Ax-IMP341 |
| Paliperidone Related Compound A | 849903-79-3 | Ax-IMP342 |
| Paliperidone Related Compound B | 84163-13-3 | Ax-IMP343 |
| Paliperidone Related Compound C | 130049-82-0 | Ax-IMP344 |
| Paliperidone Related Compound D | 761460-08-6 | Ax-IMP345 |
| Flecainide Impurity B | 22990-77-8 | Ax-IMP337 |
| Flecainide impurity C | 152171-74-9 | Ax-IMP338 |
| Flecainide impurity D | 35480-52-5 | Ax-IMP339 |
| Flecainide Impurity E | 57415-36-8 | Ax-IMP340 |
| Pyridostigmine Impurity B | 31034-86-3 | Ax-IMP335 |