You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2Z)-2-[(4-ethylphenyl)methylidene]-7-[(4-ethylpiperazin-1-yl)methyl]-6-hydroxy-4-methyl-1-benzofuran-3-one into its molecular formula.
user
C25H30N2O3
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