IUPAC:(2S,3R)-3-[(2R,3S)-5,7-dihydroxy-2-(4-methoxyphenyl)-4-oxo-3,4-dihydro-2H-1-benzopyran-3-yl]-5,7-dihydroxy-2-(4-methoxyphenyl)-3,4-dihydro-2H-1-benzopyran-4-one
IUPAC:(2S,3R)-3-[(2R,3S)-5,7-dihydroxy-2-(4-methoxyphenyl)-4-oxo-3,4-dihydro-2H-1-benzopyran-3-yl]-5,7-dihydroxy-2-(4-methoxyphenyl)-3,4-dihydro-2H-1-benzopyran-4-one