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 N-(3-acetylphenyl)-2-[(2-phenyl-1,4-diazaspiro[4.4]nona-1,3-dien-3-yl)sulfanyl]acetamide into its molecular formula.
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C23H23N3O2S
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