135446-92-3 1H-Indole-6-carboxylic acid, 2-(4-(bis(carboxymethyl)amino)-3-(carboxymethoxy)phenyl)- 2-(4-(Bis(carboxymethyl)amino)-3-(carboxymethoxy)phenyl)-1H-indole-6-carboxylic acid 2-(4-(Biscarboxymethyl)amino-3-(carboxymethoxy)phenyl)-1H-indole-6-carboxylic acid Mag-indo-1