4-Amino-6-((5-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-2-sulphophenyl)azo)-3-((2,5-disulphophenyl)azo)-5-hydroxynaphthalene-2,7-disulphonic acid 69571-16-0 EINECS 274-045-1