tetranatrijev 7-amino-4-hidroksi-3-[4-[4-[4-(4-hidroksi-7-sulfonato-naftalen-1-ilazo)-2-sulfonato-fenilamino]fenilazo]-6-sulfonato-naftalen-1-ilazo]naftalen-2-sulfonat;
reaktionsblandning av: pentanatriumbis(1-(3(eller 5)-(4-anilino-3-sulfonatofenylazo)-4-hydroxi-2-oxidofenylazo)-6-nitro-4-sulfonato-2-naftolato)ferrat(1-); pentanatrium[(1-(3-(4-anilino-3-sulfonatofenylazo)-4-hydroxi-2-oxidofenylazo)-6-nitro-4-sulfonato-2-naftolato)-(5-(4-anilino-3-sulfonatofenylazo)-4-hydroxi-2-oxidofenylazo)-6-nitro-4-sulfonato-2-naftolato]ferrat(1-)