Synonyms: EINECS 258-024-4;52584-45-9;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)-, sodium salt (1:1);Benzenesulfonic acid, 4-((4,4,5,5,5-pentafluoro-3-(pentafluoroethyl)-1,2,3-tris(trifluoromethyl)-1-pentenyl)oxy)-, sodium salt;Sodium 4-((4,4,5,5,5-pentafluoro-3-(pentafluoroethyl)-1,2,3-tris(trifluoromethyl)-1-pentenyl)oxy)benzenesulphonate