Tenofovir Disoproxil Standard

5-[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-bis(1-methylethyl)ester-5-oxide-2,4,6,8-tetraoxa-5-phosphanonanedioic Acid; (R)-5-[[2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-bis(1-methylethyl)ester-5-oxide-2,4,6,8-tetraoxa-5-phosphanonanedioic Acid; (R)-(((((1-(6-Amino-9H-purin-9-yl)propan-2-yl)oxy)methyl)phosphoryl)bis(oxy))bis(methylene) diisopropyl bis(carbonate);