O=S(=O)([O-])c1c(F)c(F)c(O)c(F)c1F    mol37940    -1_1
O=S(=O)(O)c1c(F)c(F)c([O-])c(F)c1F    mol37940    -1_2
O=S(=O)([O-])c1c(F)c(F)c([O-])c(F)c1F    mol37940    -2_1