3-(4-Hydroxyphenyl)-6-methoxy-3,4-dihydro-2H-1-benzopyran-7-ol
3-(4-Hydroxyphenyl)-6-methoxy-3,4-dihydro-2H-1-benzopyran-7-ol ??
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3-(4-Hydroxyphenyl)-6-methoxy-3,4-dihydro-2H-1-benzopyran-7-ol C??? ??, ??, ??
3-(4-Hydroxyphenyl)-6-methoxy-3,4-dihydro-2H-1-benzopyran-7-ol ?? ?? ? ???
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3-(4-Hydroxyphenyl)-6-methoxy-3,4-dihydro-2H-1-benzopyran-7-ol ?? ??
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