1	21D	Naphthalene-1,5-disulfonic acid	1.000
2	TK4	2-acetylamino-napthalene-1,5-disulfonic acid	0.818
3	BIH	Naphthalene-2,6-disulfonic acid	0.800
4	5NS	5-aminonaphthalene-1-sulfonic acid	0.737