英文别名((Hydroxy((((R)-1-(6-((hydroxymethyl)amino)-9H-purin-9-yl)propan-2-yl)oxy)methyl)phosphoryl)oxy)methyl isopropyl carbonate; Tenofovir disoproxil Impurity 21; Tenofovir Impurity W; Tenofovir impurity 89; 2,4,7-Trioxa-5-phosphanonanoic acid, 5-hydroxy-9-[6-[(hydroxymethyl)amino]-9H-purin-9-yl]-8-methyl-, 1-methylethyl ester, 5-oxide, (8R)-; Tenofovir disoproxil fumarate N6 hydroxymethyl impurity