5-Ethoxy-1,4,4a,9a-tetrahydro-8-hydroxy-1-methoxy-1,4-ethano-9,10-anthrachinon

5,8-dihydroxy-7-(hydroxymethyl)-1-methoxy-1,4-dihydro-1,4-ethanoanthracene-9,10-dione

5-Ethoxy-1,4-dihydro-8-hydroxy-7-hydroxymethyl-1-methoxy-1,4-ethano-9,10-anthrachinon

1,4-Dihydroxy-3-hydroxymethyl-5-methoxy-9,10-anthrachinon

2-methyl-1,4-dimethoxy-8-nitro-9,10-anthraquinone