penciclovir and its Impurities
An antiviral drug which is used for treating herpesvirus infections. Penciclovir is a guanosine (a purine nucleoside) analogue and a metabolite of Famciclovir .Reference standards of Penciclovir API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(E)-2-(2-(2-((4-(2-Amino-6-chloro-9H-purin-9-yl)-2-formylbut-1-en-1-yl)amino)-6-chloro-9H-purin-9-yl)ethyl)propane-1,3-diyl Diacetate
(E)-2-(2-(2-((4-(2-Amino-6-chloro-9H-purin-9-yl)-2-formylbut-1-en-1-yl)amino)-6-chloro-9H-purin-9-yl)ethyl)propane-1,3-diyl Diacetate
Catalogue No.:PA 16 92560
CAS :
NA
Molecular Formula : C24H26Cl2N10O5
Molecular Weight : 605.43


1-(4-Hydroxy-3-(hydroxymethyl)butyl)-7-imino-1,3,6,8-tetraazaspiro[4.4]nonane-2,4,9-trione
1-(4-Hydroxy-3-(hydroxymethyl)butyl)-7-imino-1,3,6,8-tetraazaspiro[4.4]nonane-2,4,9-trione
Catalogue No.:PA 16 0921013
CAS :
1379017-92-1
Molecular Formula : C10H15N5O5
Molecular Weight : 285.26