1,3-benzenediol, 5-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-4-[(4-hydroxyphenyl)methyl]- 10-(4-Hydroxybenzyl)-isorhapontigenin 4-(4-Hydroxy-benzyl)-5-[2-(4-hydroxy-3-methoxy-phenyl)-vinyl]-benzene-1,3-diol 4-(4-hydroxybenzyl)-5-[(E)-2-(4-hydroxy-3-methoxyphenyl)vinyl]benzene-1,3-diol Gnetupendin A InChI=1/C22H20O5/c1-27-22-11-15(5-9-20(22)25)2-6-16-12-18(24)13-21(26)19(16)10-14-3-7-17(23)8-4-14/h2-9,11-13,23-26H,10H2,1H3/b6-2