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-(3,4-difluorophenyl)-1'-[(4-hydroxyphenyl)methyl]-5'-nitro-1,1-dioxospiro[1,3-thiazolidine-2,3'-indole]-2',4-dione is given. What is its corresponding molecular formula?
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C23H15F2N3O7S
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