ammonium undecafluorohexanoate Hexanoic acid,undecafluoro-,ammonium salt Undecafluorohexanoic acid, ammonium salt Undecafluorohexanoic acid,ammonium salt Ammonium perfluorohexanoate Einecs 244-479-6 Hexanoic acid, 2,2,3,3,4,4,5,5,6,6,6-undecafluoro-, ammonium salt (1:1)