2-Naphthalenesulfonic acid, 5-((4-(bis(2-hydroxyethyl)amino)phenyl)azo)-8-((2-methylphenyl)azo)-, monosodium salt 2-Naphthalenesulfonic acid, 5-(4-(bis(hydroxyethyl)amino)phenylazo)-8-(o-tolylazo)-, sodium salt 67875-14-3 EINECS 267-528-3 Sodium 5-((4-(bis(2-hydroxyethyl)amino)phenyl)azo)-8-((o-tolyl)azo)naphthalene-2-sulphonate