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Benzo[6,7]cyclohepta[1,2,3-cd]benzofuran-4,8,10-triol,6-[5-[(1E)-2-[3-(3,5-dihydroxyphenyl)-6-hydroxy-2-(4-hydroxyphenyl)-4-benzofuranyl]ethenyl]-2-hydroxyphenyl]-1,6,7,11b-tetrahydro-1,7-bis(4-hydrox related products: