Phosphonic acid, P-(((1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy)methyl)-, hydrate (1:1)

It features an adenine (6-aminopurine) base linked to a phosphonomethyl ether side chain with defined (1R) stereochemistry, which is critical for antiviral activity. Phosphonic acid, P-(((1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy)methyl)-, hydrate (1:1) is an acyclic nucleotide phosphonate antiviral compound corresponding to tenofovir in its hydrated free-acid form.