sodium 1-amino-9,10-dihydro-4-[[4-[[methyl[(4-methylphenyl)sulphonyl]amino]methyl]phenyl]amino]-9,10-dioxoanthracene-2-sulphonate

2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-4-methyl(4-methylphenyl)sulfonylaminomethylphenylamino-9,10-dioxo-, monosodium salt

1-Amino-9,10-dihydro-4-[[4-[[methyl[(4-methylphenyl)sulfonyl]amino]methyl]phenyl]amino]-9,10-dioxo-2-anthracenesulfonic acid sodium salt