1-Amino-4-((4-((4-hydroxyphenyl)azo)phenyl)amino)-2-anthraquinonesulfonic acid, sodium salt 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-((4-((4-hydroxyphenyl)azo)phenyl)amino)-9,10-dioxo-, monosodium salt 68444-08-6 EINECS 270-579-4 Sodium 1-amino-9,10-dihydro-4-((4-((4-hydroxyphenyl)azo)phenyl)amino)-9,10-dioxoanthracene-2-sulphonate