Synonyms: ammonium 2-[2-[2-(aminosulphonyl)-1,1,2,2-tetrafluoroethoxy]-1,1,2,3,3,3-hexafluoropropoxy]-2,3,3,3-tetrafluoropropionate;WG-III;2-[2-[2-(Aminosulfonyl)-1,1,2,2-tetrafluoroethoxy]-1,1,2,3,3,3-hexafluoropropoxy]-2,3,3,3-tetrafluoropropionic acid ammonium salt