Reference Standard
| CAS Number | 104227-87-4 |
| Formula | C₁₄H₁₉N₅O₄ |
| Molecular Weight | 321.33 g/mol |
| Purity | ≥98% (typical pharmacopeial standard) |
| Storage | 2–8 °C (refrigerate) |
Synthetic acyclic guanine derivative; orally administered prodrug converted to active penciclovir in vivo.
Antiviral treatment for herpes zoster, genital herpes, and herpes labialis.
Identity/HPLC assay, impurity profiling by HPLC/LC-MS, NMR, melting point. Typical compendial tests per USP/EP.
