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 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 71033-16-4 EINECS 275-146-3 Hexasodium 2,2'-(p-phenylenebis(vinylene(3-sulphonato-p-phenylene)))bis(naphtho(1,2-d)triazole-6,8-disulphonate)