2,2'-oxalyl-di-anthraquinone

2-propylanthracene-9,10-dione

2-(α,β-dichloro-2,4-dinitro-phenethyl)-anthraquinone

2,2'-(ethene-1,2-diyl)bis(anthracene-9,10-dione)

9,9'-bianthryl-3,3'-dicarboxylic acid