valaciclovir hydrochloride dihydrate and its Impurities

Valacyclovir hydrochloride hydrate is potent inhibitor of viral DNA polymerase. It is a prodrug of acyclovir that is useful in viral, AIDS, and immune. Reference standards of valaciclovir hydrochloride dihydrate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.