Tafluprost is a fluorinated analog of prostaglandin F2?. The chemical name for tafluprost is 1methylethyl (5Z)-7-{(1R, 2R, 3R, 5S)-2-[(1E)-3,3-difluoro-4-phenoxy-1-butenyl}-3,5-dihydroxycyclopentyl]5-heptenoate. The molecular formula of tafluprost is C25H34F2O5 and its molecular weight is 452.53.