85895-84-7 EINECS 288-759-6 Trisodium 5-(((6-((2-chloroethyl)sulphonyl)bicyclo(2.2.1)hept-2-yl)carbonyl)amino)-4-hydroxy-3-((1-sulphonato-2-naphthyl)azo)naphthalene-2,7-disulphonate