4403-89-8 74967-31-0 Benzenesulfonic acid, 2-((4-amino-9,10-dihydro-3-methyl-9,10-dioxo-1-anthracenyl)amino)-5-methyl-, monosodium salt EINECS 224-545-0 Sodium 4-((4-amino-9,10-dihydro-3-methyl-9,10-dioxo-1-anthryl)amino)toluene-3-sulphonate