5,10-Violanthrenedione,16,17-dihydroxy, Dihydroxy-5,10-violanthrenedione, Dihydroxydinaphtho(1,2,3-cd:3',2',1'-lm)perylene-5,10-dione, 5,10-dihydroxyanthra[9,1,2-cde]benzo[rst]pentaphene-15,16-dione, Dihydroxyviolanthrone, Anthra(9,1,2-cde)benzo(rst)pentaphene-5,10-dione,dihydroxy
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