You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2Z)-2-[(2,5-dimethoxyphenyl)methylidene]-6-hydroxy-4-methyl-7-[(4-methylpiperazine-1,4-diium-1-yl)methyl]-1-benzofuran-3-one by IUPAC nomenclature, provide its molecular formula.
user
C24H30N2O5+2
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