Synonyms: Benzenesulfonic acid, 4-((4,4,5,5,5-pentafluoro-3-(1,1,2,2,2-pentafluoroethyl)-1,2,3-tris(trifluoromethyl)-1-penten-1-yl)oxy)-, compd. with N,N-dibutyl-1-butanamine (1:1);4-((4,4,5,5,5-Pentafluoro-3-(pentafluoroethyl)-1,2,3-tris(trifluoromethyl)-1-pentenyl)oxy)benzenesulfonic acid, tributylammonium salt;4-((4,4,5,5,5-Pentafluoro-3-(pentafluoroethyl)-1,2,3-tris(trifluoromethyl)pent-1-enyl)oxy)benzenesulphonic acid, compound with tributylamine (1:1);Benzenesulfonic acid, 4-((4,4,5,5,5-pentafluoro-3-(pentafluoroethyl)-1,2,3-tris(trifluoromethyl)-1-pentenyl)oxy)-, compd. with N,N-dibutyl-1-butanamine (1:1);4-{[(1E)-4,4,5,5,5-pentafluoro-3-(pentafluoroethyl)-1,2,3-tris(trifluoromethyl)pent-1-en-1-yl]oxy}benzenesulfonic acid - N,N-dibutylbutan-1-amine (1:1)