The chemical Emtricitabine has a designated molecular formula of C8H10FN3O3S and a molecular weight of 247.244 g/mol. Synonyms may include: 524W91, (2R-cis)-4-Amino-5-fluoro-1-(2-(hydroxymethyl)-1,3-oxathiolan-5-yl)-2(1H)-pyrimidinone, 2'-Deoxy-5-fluoro-3'-oxa-4'-thiocytidine, (-)-2'-Deoxy-5-fluoro-3'-thiacytidine, dOTFC, 2-FTC, (-)-FTC, Coviracil, DRG-0208, 2'-Deoxy-5-fluoro-3'-thiacytidine, FTC, BW524W91 (ChemID).