85631-75-0 EINECS 288-023-4 Trisodium 2-((4-((4-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-7-sulphonato-1-naphthyl)azo)-2,5-dimethylphenyl)azo)benzene-1,4-disulphonate