Adefovir dipivoxil [[2-(6-Amino-9H-purin-9-yl)ethoxy]methyl]phosphonic acid diethyl ester Adefovir 2,2-Dimethylpropanoic acid 1,1'-[[[[2-[6-[(2,2-dimethyl-1-oxopropyl)amino]-9H-purin-9-yl]ethoxy]methyl]phosphinylidene]bis(oxymethylene)] ester Propanoic acid, 2,2-dimethyl-, [[[[2-(6-amino-9H-purin-9-yl)ethoxy]methyl]hydroxyphosphinyl]oxy]methyl ester 6-(BETA-HYDROXYETHYLAMINO)-PURINE Adefovir Dipivoxil Impurity 3 Adefovir Dipivoxyl IMpurity B Adefovir Dipivoxil Impurity 6 Adefovir Dipivoxyl IMpurity I Adefovir Dipivoxyl N6-HydroxyMethyl IMpurity Propanoic acid, 2,2-dimethyl-, [[[[2-(6-amino-9H-purin-9-yl)ethoxy]methyl]ethoxyphosphinyl]oxy]methyl ester Adefovir Impurity 30 Adefovir Dipivoxil Impurity 5 9-vinyl-9H-purin-6-amine ((hydroxy((2-(6-pivalaMido-9H-purin-9-yl)ethoxy)Methyl)phosphoryl)oxy)Methyl pivalate Adefovir Dipivoxil Impurity 4 Adefovir iMpurity