C.I.DirectYellow106; DirectFastYellowARL; 2H-Naphtho1,2-dtriazole-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]; C.I. Direct Yellow 80; Best Direct Supra Yellow ARL