1 EO8 4-(2-carboxyphenyl)carbonyl-2-nitro-benzoic acid 1.000 2 9FN 2-(4-chloranyl-3-nitro-phenyl)carbonylbenzoic acid 0.833 3 QDB 4-benzoylbenzoic acid 0.739 4 WL3 2-(4-fluorophenyl)carbonylbenzoic acid 0.708