1	41D	3-[2-(2-hydroxyethyl)pyridinium-1-yl]propane-1-sulfonate	1.000
2	1PS	3-pyridinium-1-ylpropane-1-sulfonate	0.812
3	KH2	3-(1-methylpiperidinium-1-yl)propane-1-sulfonate	0.765
4	MPO	3[N-morpholino]propane sulfonic acid	0.706