disodium 1-amino-4-[[4-[[[(2,3-dichloro-6-quinoxalinyl)carbonyl]methylamino]methyl]-2-sulphonatophenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate

1-Amino-4-[[4-[[[(2,3-dichloro-6-quinoxalinyl)carbonyl](methyl)amino]methyl]-2-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid disodium salt

2-Anthracenesulfonic acid, 1-amino-4-[[4-[[[(2,3-dichloro- 6-quinoxalinyl)carbonyl]methylamino]methyl] -2-sulfophenyl]amino]-9,10-dihydro-9,10-dioxo-, disodium salt