Travoprost is the Alcon trade name for fluprostenol isopropyl ester, an F-series prostaglandin analog which has been approved for use as an ocular hypotensive drug. Fluprostenol isopropyl ester is a prodrug which is converted by esterase enzymatic activity in the cornea to yield the corresponding free acid. 5-trans Fluprostenol isopropyl ester (5-trans Travoprost) is an impurity that is routinely found in bulk preparations of fluprostenol isopropyl ester in amounts ranging from 1-3%. The pharmacology of 5-trans fluprostenol isopropyl ester has not been studied extensively to date.

Synonyms:

5,6-trans Travoprost;

(5E)-7-[(1R,3R,3R,5S)-3,5-dihydroxy-2-[(1E,3R)-3-hydroxy-4-[3-(trifluoroMethyl)phenoxy]-1-buten-1-yl]cyclopentyl]-5-heptenoic Acid 1-Methylethyl Ester;