You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1S,2R,3S)-2-(3,5-dimethoxyphenyl)-1-[(R)-hydroxy-(4-hydroxyphenyl)methyl]-3-(4-hydroxyphenyl)-2,3-dihydro-1H-indene-4,6-diol into molecular formula.
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C30H28O7
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