1,5-Naphthalenedisulfonic acid, 3-((4-((4-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-5-sulfo-1-naphthalenyl)azo)-7-sulfo-1-naphthalenyl)azo)-, tetrasodium salt 68992-02-9 EINECS 273-667-0 Tetrasodium 3-((4-((4-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-5-sulphonato-1-naphthyl)azo)-7-sulphonato-1-naphthyl)azo)naphthalene-1,5-disulphonate