Synonyms: Treprostinil sodium;Remodulin;UNII-7JZ75N2NT6;Acetic acid, (((1R,2R,3aS,9aS)-2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-((3S)-3-hydroxyoctyl)-1H-benz(f)inden-5-yl)oxy)-, monosodium salt;({(1S,2S,3aR,9aR)-2-hydroxy-1-[(3R)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[b]naphthalen-5-yl}oxy)acetic acid;sodium ({(1S,2S,3aR,9aR)-2-hydroxy-1-[(3R)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[b]naphthalen-5-yl}oxy)acetate;sodium ({(1R,2R,3aS,9aS)-2-hydroxy-1-[(3S)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[b]naphthalen-5-yl}oxy)acetate