1	PIN	Piperazine-N,N'-bis(2-ethanesulfonic acid)	1.000
2	A1ADI	2,2'-(1,4-diazepane-1,4-diyl)di(ethane-1-sulfonic acid)	0.850
3	EPE	4-(2-hydroxyethyl)-1-piperazine ethanesulfonic acid	0.737