acyclovir and its Impurities
Acyclovir is an antiviral drug, used in the treatment of Herpes and AIDS. It is an an orally active acyclic nucleoside. Reference standards of Acyclovir API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Di-tert-butyl ((2,5,7,10-tetraoxaundecane-1,11-diyl)bis(6-oxo-6,9-dihydro-1H-purine-9,2-diyl))dicarbamate
Di-tert-butyl ((2,5,7,10-tetraoxaundecane-1,11-diyl)bis(6-oxo-6,9-dihydro-1H-purine-9,2-diyl))dicarbamate
Catalogue No.:PAI 01 002413
CAS :
NA
Molecular Formula : C27H38N10O10
Molecular Weight : 662.66


N,N'-((2,5,7,10-Tetraoxaundecane-1,11-diyl)bis(6-oxo-6,9-dihydro-1H-purine-9,2-diyl))diacetamide
N,N'-((2,5,7,10-Tetraoxaundecane-1,11-diyl)bis(6-oxo-6,9-dihydro-1H-purine-9,2-diyl))diacetamide
Catalogue No.:PAI 01 002417
CAS :
NA
Molecular Formula : C21H26N10O8
Molecular Weight : 546.5


2-amino-9-(((2-hydroxyethoxy)methoxy)methyl)-1,9-dihydro-6H-purin-6-one compound with 2-amino-9-((2-(hydroxymethoxy)ethoxy)methyl)-1,9-dihydro-6H-purin-6-one (1:1)
2-amino-9-(((2-hydroxyethoxy)methoxy)methyl)-1,9-dihydro-6H-purin-6-one compound with 2-amino-9-((2-(hydroxymethoxy)ethoxy)methyl)-1,9-dihydro-6H-purin-6-one (1:1)
Catalogue No.:PA 01 0201004
CAS :
NA
Molecular Formula : C18H26N10O8
Molecular Weight : 510.47


N-(9-((2-((tert-Butyldimethylsilyl)oxy)ethoxy)methyl)-6-oxo-6,9-dihydro-1H-purin-2-yl)acetamide
N-(9-((2-((tert-Butyldimethylsilyl)oxy)ethoxy)methyl)-6-oxo-6,9-dihydro-1H-purin-2-yl)acetamide
Catalogue No.:PAI 01 002419
CAS :
139767-69-4
Molecular Formula : C16H27N5O4Si
Molecular Weight : 381.51


N-Allyl-N-(6-(allyloxy)-9-((2-((tert-butyldimethylsilyl)oxy)ethoxy)methyl)-9H-purin-2-yl)acetamide
N-Allyl-N-(6-(allyloxy)-9-((2-((tert-butyldimethylsilyl)oxy)ethoxy)methyl)-9H-purin-2-yl)acetamide
Catalogue No.:PAI 01 002420
CAS :
NA
Molecular Formula : C22H35N5O4Si
Molecular Weight : 461.64