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 2-[(2E)-4-oxo-2-[(2-phenyl-1H-indol-3-yl)methylidenehydrazinylidene]-1,3-thiazolidin-5-yl]ethyl acetate is given. What is its corresponding molecular formula?
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C22H20N4O3S
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