Custom Synthesis
| CAS Number | Not assigned |
| Formula | Closely related to C₁₄H₁₉N₅O₄ |
| Molecular Weight | ~321.33 g/mol |
| Purity | ≥ 95.0% |
| Storage | Store at 2–8 °C |
Famciclovir Impurity 16 is generally described as a positional or structural isomer arising during purine ring substitution. Exact structure may vary depending on synthetic route.
Used as a reference impurity in method validation and impurity limit studies.
HPLC retention comparison, LC-MS confirmation, NMR structural elucidation.
