natrijev 2-(4-(4-fluor-6-(2-sulfo-etilamino)-[1,3,5]triazin-2-ilamino)-2-ureido-fenilazo)-5-(4-sulfofenilazo)benzen-1-sulfonat
3-hydroxi-4-(2-hydroxinaftalen-1-ylazo)naftalen-1-sulfonsyra, Na-salt och B: 1-[2-hydroxi-5-(4-metoxifenylazo)fenylazo]-naftalen-2-ol