116989-76-5 Acetic acid, ((5-((6H-indolo(2,3-b)quinoxalin-6-yl)methyl)-1-phenyl-1H-1,3,4-triazol-2-yl)thio)- N(sup 6)-((4-Phenyl-5-mercaptoacetic acid-1,2,4-triazol-3-yl)methylene)indophenazine