1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluoro-1-octanesulfonic acid 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 1-Perfluorooctanesulfonic acid 132324-11-9 1763-23-1 EF 101 EINECS 217-179-8 Eftop EF 101 HSDB 7099 Heptadecafluoro-1-octanesulfonic acid Heptadecafluorooctane-1-sulphonic acid PFOS Perfluorooctane sulfonate Perfluorooctane sulfonic acid Perfluorooctylsulfonic acid