You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5,7-dihydroxy-8-[1-(3-hydroxy-4-methoxyphenyl)-3-(4-methylpiperazin-1-yl)-3-oxopropyl]-2-phenylchromen-4-one into its molecular formula.
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C30H30N2O7
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