Desphenyl Tenofovir Alafenamide-d7 Ammonium Salt is labeled form of Desphenyl Tenofovir Alafenamide (D297043), which belongs to a group of tenofovir diesters compounds, which can inhibit HIV-1 virus replication. Desphenyl Tenofovir Alafenamide can also be used to investigate the effect of oral absorption and lymphoid cell loading of GS-7340 (a prodrug of tenofovir)