1	EP1	3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid	1.000
2	250	(2r)-2-hydroxy-3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid	0.941
3	7WF	2-hydroxy-3-[4-(2-hydroxy-3-sulfopropyl)piperazin-1-yl]propane-1-sulfonic acid	0.727
4	1PS	3-pyridinium-1-ylpropane-1-sulfonate	0.706
5	MPO	3[N-morpholino]propane sulfonic acid	0.706