Nonafluorobutanesulfonic acid anhydride36913-91-4100 % similar Perfluorobutanesulfonyl fluoride375-72-454 % similar Perfluorooctanesulfonyl fluoride307-35-752 % similar Perfluorobutanesulfonic acid375-73-552 % similar 1,1,2,2,3,3,4,4,5,5,6,6,6-Tridecafluoro-1-hexanesulfonyl fluoride423-50-752 % similar Lithium nonafluorobutanesulfonate131651-65-552 % similar Potassium perfluorobutanesulfonate29420-49-352 % similar Perfluorooctanesulfonic acid1763-23-150 % similar Potassium perfluorooctanesulfonate2795-39-350 % similar Perfluorohexanesulfonic acid355-46-450 % similar Perfluoroheptanesulfonic acid375-92-850 % similar Potassium perfluorohexanesulfonate3871-99-650 % similar Perfluorooctanesulfonamide754-91-650 % similar Ammonium perfluorooctylsulfonate29081-56-945 % similar Sulfluramid4151-50-243 % similar Trifluoromethanesulfonic anhydride358-23-642 % similar Tetraethylammonium perfluorooctanesulfonate56773-42-342 % similar Perfluorobutane355-25-941 % similar Triphenylsulfonium nonafluorobutanesulfonate144317-44-240 % similar Perfluorooctane307-34-639 % similar