1,4-diphenyl-9,10-anthraquinone
9,10-dioxo-9,10-dihydroanthracene-1,4-diyl bis(4-methylbenzenesulfonate)
Toluene-4-sulfonic acid 2-(2-diethylamino-ethyl)-6-oxo-2,6-dihydro-dibenzo[cd,g]indazol-5-yl ester
Toluene-4-sulfonic acid 2-(2-hydroxy-ethyl)-6-oxo-2,6-dihydro-dibenzo[cd,g]indazol-5-yl ester
1,4-dihydroxy-9,10-anthracenedione