Synonyms: 12222-60-5;EINECS 235-416-3;AC1L3PFJ;C.I. Direct Yellow 106;178418-45-6;2H-Naphtho(1,2-d)triazole-5-sulfonic acid, 2,2'-(1,1-diazenediylbis((2-sulfo-4,1-phenylene)-2,1-ethenediyl(3-sulfo-4,1-phenylene)))bis-, sodium salt (1:6);2H-Naphtho(1,2-d)triazole-5-sulfonic acid, 2,2'-(azobis((2-sulfo-4,1-phenylene)-2,1-ethenediyl(3-sulfo-4,1-phenylene)))bis-, hexasodium salt;2H-Naphtho[1,2-d]triazole-5-sulfonic acid, 2,2'-[azobis[(2-sulfo-4,1- phenylene)-2,1-ethenediyl(3-sulfo-4,1-phenylene) ]]bis-, hexasodium salt;Hexasodium 2,2'-(azobis((2-sulphonato-4,1-phenylene)vinylene(3-sulphonato-4,1-phenylene)))bis(2H-naphtho(1,2-d)triazole-5-sulphonate);hexasodium 2-[3-sulfonato-4-[2-[2-sulfonato-4-[[3-sulfonato-4-[2-[2-sulfonato-4-(5-sulfonatobenzo[e]benzotriazol-2-yl)phenyl]ethenyl]phenyl]diazenyl]phenyl]ethenyl]phenyl]benzo[e]benzotriazole-5-sulfonate