1	4DS	4,4'-diisothiocyano-2,2'-stilbenedisulfonic acid	1.000
2	4KU	2,2'-ethane-1,2-diylbis{5-[(sulfanylmethyl)amino]benzenesulfonic acid}	1.000
3	EYC	2,2'-ethyne-1,2-diylbis{5-[(chloroacetyl)amino]benzenesulfonic acid}	0.765