You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-[(E)-[[3-[(E)-3-(hydroxyamino)-3-oxoprop-1-enyl]benzoyl]hydrazinylidene]methyl]benzoic acid is given. What is its corresponding molecular formula?
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C18H15N3O5
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