You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[[4-(4-chlorophenyl)-5-methyl-1,3-thiazol-2-yl]methyl]-1-propanoylpiperidine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C20H24ClN3O2S
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