Leucotetrahydroxyanthraquinone

2,3-dihydro-1,4,5,8-tetrahydroxyanthraquinone

1,4,5,8-Tetrahydroxyanthraquinone, leuco derivative

5,8,9,10-tetrahydroxy-2,3-dihydroanthracene-1,4-dione

2,3-Dihydro-1,4,5,8-tetrahydroxy-9,10-anthracenedione

5,8,9,10-tetrahydroxy-2,3-dihydroanthracene-1,4-quinone