IUPAC:(1E,2S,3S)-2-(3,5-dihydroxyphenyl)-3-(4-hydroxy-3-methoxyphenyl)-1-[(4-hydroxy-3-methoxyphenyl)methylidene]-2,3-dihydro-1H-indene-4,6-diol
IUPAC:(1E,2S,3S)-2-(3,5-dihydroxyphenyl)-3-(4-hydroxy-3-methoxyphenyl)-1-[(4-hydroxy-3-methoxyphenyl)methylidene]-2,3-dihydro-1H-indene-4,6-diol