Synonyms: Hexanoicacid, 6-[[(1R,5R)-5-[(1E,3R)-4-(3-chlorophenoxy)-3-hydroxy-1-butenyl]-3,3-dimethyl-2-oxocyclopentyl]thio]-(9CI); Hexanoic acid,6-[[5-[4-(3-chlorophenoxy)-3-hydroxy-1-butenyl]-3,3-dimethyl-2-oxocyclopentyl]thio]-,[1R-[1a,5b(1E,3R*)]]-; NP 13A