Category
Acyclovir
CAS Number
73-40-5
Alternate CAS Number
635-39-2(HCl Salt);10333-92-3(Sulphate Salt)
Molecular Formula
C₅H₅N₅O
Molecular Weight
151.13 g/mol
Synonym

2-amino-1,7-dihydro-6H-purin-6-one; Guanine (EP & USP) ; Valaciclovir EP Impurity A ; Valaciclovir USP Related Compound A; 2-Amino-1,9-dihydro-6H-purin-6-one; 2-Amino-hypoxanthine; 2-Amino-6-hydroxy-1H-purine; 2-Amino-6-hydroxypurine; 2-Aminohypoxanthine; 9H-Guanine; Ganciclovir Impurity F; Aciclovir Impurity B

Keywords
Intermediates
Impurities
Metabolites.
Pharmaceutical Standards
Fine Chemicals
Impurities manufacturer and Suppliers in Hyderabad india
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Aciclovir EP Impurity B is a specified related substance listed in the European Pharmacopoeia (EP) for the quality control of aciclovir, an antiviral drug used mainly for the treatment of herpes virus infections. This impurity may arise during the synthesis, processing, or degradation of aciclovir. It is used as a reference standard in analytical testing, such as HPLC, to identify and quantify impurity levels and ensure that aciclovir complies with pharmacopoeial standards for purity, quality, and safety.