1	7WF	2-hydroxy-3-[4-(2-hydroxy-3-sulfopropyl)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	0.773
3	EP1	3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid	0.727