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-prop-2-enyl-2-propylsulfanylspiro[6H-benzo[h]quinazoline-5,1'-cyclohexane]-4-one is given. What is its corresponding molecular formula?
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C23H28N2OS
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