6H,9H-5,8,10,12-Tetraoxabenzo[a]cyclopenta[h]fluorene-3-ol;6H-[1,3]Dioxolo[5,6]benzofuro[3,2-c][1]benzopyran-3-ol;3-Hydroxy-8,9-methylenedioxy-6a,11a-dehydropterocarpan;3-Hydroxy-8,9-Methylenedioxypterocarpene
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