1	14I	Naphtho[2,1-B:7,8-B']difuran-2,9-dicarboxylic acid	1.000
2	01I	Naphtho[2,1-B:7,6-B']difuran-2,8-dicarboxylic acid	0.913
3	WU0	4-[3-(4-carboxyphenyl)phenyl]benzoic acid	0.704