Synonyms: Benzenesulfonic acid, 3,3'-((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino)bis(2,4,6-triethyl-;Metanilic acid, N,N'-1,4-anthraquinonylenebis(2,4,6-triethyl-;3,3'-((9,10-Dihydro-9,10-dioxo-1,4-anthrylene)diimino)bis(2,4,6-triethylbenzenesulphonic) acid;3,3'-[(9,10-dioxo-9,10-dihydroanthracene-1,4-diyl)diimino]bis(2,4,6-triethylbenzenesulfonic acid)