1,5-Bis(1-anthraquinonylamino)anthraquinone

1,5-bis[(9,10-dihydro-9,10-dioxo-1-anthryl)amino]anthraquinone

1,1'-[9,10-Dihydro-9,10-dioxoanthracene-1,5-diylbis(imino)]bis(9,10-anthraquinone)