1,5-dihydroxyanthraquinone
1,4,5-trihydroxy-9,10-anthracenedione
1,6,11-Trihydroxy-8-(2-methyl-[1,3]dioxolan-2-yl)-7,8,9,10-tetrahydro-naphthacene-5,12-dione
1,6,11-Trihydroxy-8-(2-methyl-[1,3]dioxolan-2-yl)-naphthacene-5,12-dione
1,8-dihydroxy-9,10-anthracenedione