2-Naphthalenesulfonic acid, 3-((5-(acetylethylamino)-2-methylphenyl)azo)-4-hydroxy-6-((4-methoxyphenyl)amino)-, monosodium salt 3-((5-(Acetylethylamino)-2-methylphenyl)azo)-4-hydroxy-6-((4-methoxyphenyl)amino)-2-naphthalenesulfonic acid, sodium salt 6369-33-1 EINECS 228-868-8 Sodium 3-((5-(acetylethylamino)-o-tolyl)azo)-4-hydroxy-6-((4-methoxyphenyl)amino)naphthalene-2-sulphonate