s 4-(fenilazo)-1,3-benzendiaminom; [1]
reaktionsblandning av: pentanatriumbis[6-anilino-3,5'-disulfonatonaftalen-2-azobensen-1,2'-diolato]koboltat(III); tetranatrium[6-anilino-3,5'-disulfonatonaftalen-2-azobensen-1,2'-diolato][6-anilino-5'-sulfamoyl-3-sulfonatonaftalen-2-azobensen-1,2'-diolato]koboltat(III); trinatriumbis[6-anilino-5'-sulfamoyl-3-sulfonatonaftalen-2-azobensen-1,2'-diolato]koboltat(III)