1 03S Methanesulfonic acid 1.000 2 ESA Ethanesulfonic acid 0.833 3 L2L Aminomethanesulfonic acid 0.833 4 VSO Vinylsulphonic acid 0.833 5 SFO Sulfonic acid 0.800 6 SO3 Sulfite ion 0.800 7 8X3 2-hydroxyethylsulfonic acid 0.714 8 9SB 2-bromanylethanesulfonic acid 0.714 9 COM 1-thioethanesulfonic acid 0.714 10 TAU 2-aminoethanesulfonic acid 0.714 11 ZLJ 2-chloroethane-1-sulfonic acid 0.714