79135-81-2 EINECS 279-081-1 Trisodium 7-((4'-((6-(benzoylamino)-1-hydroxy-3-sulphonato-2-naphthyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-8-hydroxynaphthalene-1,6-disulphonate