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 3-[4-[(3-ethoxy-4-hydroxy-5-nitrophenyl)methylidene]-5-oxo-3-phenylpyrazol-1-yl]benzoic acid is given. What is its corresponding molecular formula?
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C25H19N3O7
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