85586-80-7 EINECS 287-886-4 Tetrasodium 2-((4-((4-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-6-sulphonato-1-naphthyl)azo)-7-sulphonato-1-naphthyl)azo)benzene-1,4-disulphonate