4,4'-diamino-2-metilazobenzen
reaktionsblandning av: tris(3,5,5-trimetylhexylammonium)-4-amino-3-(4-(4-(2-amino-4-hydroxifenylazo)anilino)-3-sulfonatofenylazo)-5,6-dihydro-5-oxo-6-fenylhydrazononaftalen-2,7-disulfonat;