1 A20 3-aminopropane-1-sulfonic acid 1.000 2 54O 3-hydroxypropane-1-sulfonic acid 0.778 3 A1A4Y 3-(methanesulfonyl)propan-1-amine 0.778 4 J6Z (2r)-butane-2-sulfonate 0.778 5 ESA Ethanesulfonic acid 0.750 6 VSO Vinylsulphonic acid 0.750 7 HJT (2~{S})-2-azanyl-4-sulfo-butanoic acid 0.727 8 A1AZH (2r)-2,3-dihydroxypropane-1-sulfonic acid 0.700 9 LLQ (2~{S})-2,3-bis(oxidanyl)propane-1-sulfonic acid 0.700 10 UKM (1r)-1-hydroxybutane-1-sulfonic acid 0.700 11 X1S 3-sulfopropanoic acid 0.700