8,9-Dihydro-2-methyl-5-hydroxy-8-methylene-4H-pyrano[3,2-h][1]benzoxepin-4-one;8,9-Dihydro-5-hydroxy-2-methyl-8-methylene-4H-pyrano[3,2-h][1]benzoxepin-4-one;Dehydroptaeroxilin;Dehydropteroxylinol
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