Synonyms: Benzenesulfonicacid,2,2'-[(2-methyl-3,6-dioxo-1,4-cyclohexadiene-1,4-diyl)bis[imino(2-methyl-4,1-phenylene)imino]]bis[5-nitro-,disodium salt (9CI); Benzenesulfonic acid,2,2'-[(3-methyl-p-benzoquinon-2,5-ylene)bis[imino(2-methyl-p-phenylene)imino]]bis[5-nitro-,disodium salt (8CI); C.I. 10415; C.I. Acid Brown 103; Coranil Brown HEGB