IUPAC:4-[(2S,3S)-3-(3,5-dihydroxyphenyl)-4-[(1Z)-2-(3,4-dihydroxyphenyl)ethenyl]-6-hydroxy-2,3-dihydro-1-benzofuran-2-yl]benzene-1,2-diol
IUPAC:4-[(2S,3S)-3-(3,5-dihydroxyphenyl)-4-[(1Z)-2-(3,4-dihydroxyphenyl)ethenyl]-6-hydroxy-2,3-dihydro-1-benzofuran-2-yl]benzene-1,2-diol