6,11-dihydroxy-7,10-dihydrotetracene-5,12-dione

(12-acetyloxy-6,11-dioxo-1,4-dihydrotetracen-5-yl) acetate

5,12-diacetoxy-2,3-dibromo-1,2,3,4-tetrahydronaphthacene-6,11-dione

5,6,11,12-tetramethoxy-1,2,3,4-tetrahydrotetracen-2-ol

1,4,9,10-蒽四酮