You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (5E)-3-(3-chlorophenyl)-5-[(2,5-dimethyl-1-naphthalen-2-ylpyrrol-3-yl)methylidene]-1,3-thiazolidine-2,4-dione by IUPAC nomenclature, provide its molecular formula.
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C26H19ClN2O2S
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