Hexasodium 2,2'-[p-phenylenebis[vinylene(3-sulfonato-p-phenylene)]]bis[naphtho[1,2-d]triazole-6,8-disulfonate]

2,2'-[1,4-phenylenebis[2,1-ethenediyl(3-sulfo-4,1-phenylene)]]bis[2h-naphtho[1,2-d]triazole-6,8-disulfonic acid]hexasodium salt ; hexasodium 2,2'-[p-phenylenebis[vinylene(3-sulphonato-p-phenylene)]]bis[naphtho[1,2-d]triazole-6,8-disulphonate] ; 2h-naphtho[1,2-d]triazole-6,8-disulfonic acid, 2,2'-[1,4-phenylenebis[2, 1-ethenediyl(3-sulfo-4,1-phenylene)]]bis-, hexasodium salt ; 2,2'-[1,4-phenylenebis[2,1-ethenediyl(3-sulfo-4,1-phenylene)]]bis-2h-naphtho[1,2-d]triazole-6,8-disulfonic, hexasodium salt