You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 3-[[3-ethyl-5-[[1-(3-nitrophenyl)pyrrol-2-yl]methylidene]-4-oxo-1,3-thiazolidin-2-ylidene]amino]benzoic acid into its molecular formula.
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C23H18N4O5S
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