84434-58-2 EINECS 282-858-8 Tetrasodium 3-((4-((4-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-7-sulphonato-1-naphthyl)azo)-7-sulphonato-1-naphthyl)azo)naphthalene-1,5-disulphonate