(2R)-5,7-Dimethoxy-2α-(3,4-dimethoxyphenyl)chroman-3β-ol;2α-(3,4-Dimethoxyphenyl)-5,7-dimethoxy-3,4-dihydro-2H-1-benzopyran-3β-ol;3,4-Dihydro-2α-(3,4-dimethoxyphenyl)-3β-hydroxy-5,7-dimethoxy-2H-1-benzopyran
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