70210-29-6 Benzoic acid, 3,3'-(1,2-ethanediylbis(oxycarbonylimino-4,1-phenyleneimino(1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo(2-(carboxymethoxy)-4,1-naphthalenediyl)azo-4,1-phenylenecarbonylimino))bis(6-hydroxy-, hexasodium salt EINECS 274-425-7