Valaciclovir Hydrochloride Dihydrate standard

2-((2-Amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy)ethyl L-valinate hydrochloride dihydrate; L-Valine, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester, hydrochloride, hydrate (1:1:2); L-Valine, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester, monohydrochloride, dihydrate; Valacyclovir Hydrochloride Dihydrate;