1,3-Naphthalenedisulfonic acid, 6-((4-chloro-6-((7-((2,4-dinitrophenyl)azo)-8-hydroxy-6-sulfo-2-naphthalenyl)amino)-1,3,5-triazin-2-yl)amino)-, tripotassium salt 138272-10-3 6-((4-Chloro-6-((7-((2,4-dinitrophenyl)azo)-8-hydroxy-6-sulfo-2-naphthalenyl)amino)-1,3,5-triazin-2-yl)amino)-1,3-naphthalenedisulfonic acid tripotassium salt 6-Chloro-N-(7-(2,4-dinitrophenylazo)-8-hydroxy-6-sulfo-2-naphthyl)-N'-(5,7-disulfo-2-naphthyl)-1,3,5-triazine-2,4-diamine 6-Chloro-N-(7-(2,4-dinitrophenylazo)-8-hydroxy-6-sulfo-2-naphthyl)-N'-(5,7-disulfo-2-naphthyl)-1,3,5-triazine-2,4-diamine, tripotassium salt Indicator 5-91 Indicator compound 5-91