((3-((Carboxyphenyl)amino)-2-phenyl-1H-inden-1-ylidene)amino)benzoic acid monohydrochloride, disodium salt 28378-83-8 Benzoic acid, ((3-((carboxyphenyl)amino)-2-phenyl-1H-inden-1-ylidene)amino)-, monohydrochloride, disodium salt