Valaciclovir Hydrochloride standard

L-Valine 2-[(2-Amino-1,6-dihydro-6-oxo-9H-purin-9yl)methoxy]ethyl Ester Hydrochlroride Salt; Valacyclovir Hydrochloride;256U87 Hydrochloride; Valaciclovir Hydrochloride; Valtrex; Zelitrex; L-Valine, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester, monohydrochloride; L-Valine, ester with 9-[(2-hydroxyethoxy)methyl]guanine, monohydrochloride (USP);