2,3,4-Trinor-1,5-inter-2-phenylene-6,9-epoxy-11,15-dihydroxy-15-dihydroxy-15-cyclohexyl-(16,17,18,19,20-pentanor)prosta-5,13-dienoate 87440-45-7 Benzoic acid, 3-((4-(3-cyclohexyl-3-hydroxy-1-propenyl)hexahydro-5-hydroxy-2H-cyclopenta(b)furan-2-ylidene)methyl)-, monosodium salt, (3aR-(2Z,3aalpha,4alpha(1E,3S*),5beta,6aalpha))- Benzoic acid, 3-((Z)-((3aR,4R,5R,6aS)-(4-((1E,3S)-3-cyclohexyl-3-hydroxy-1-propenyl)hexahydro-5-hydroxy-2H-cyclopenta(b)furan-2-ylidene)methyl)-, monosodium salt CG 4203 Sodium 2,3,4-trinor-1,5-2-phenylene-6,9-epoxy-11,15-dihydroxy-15-cyclohexyl-(16,17,18,19,20-pentanor)prosta-5,13-dienoate Taprostene Taprostene sodium salt