6655-96-5 EINECS 229-684-0 Trisodium 8-hydroxy-7-((4'-((1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)naphthalene-1,6-disulphonate