You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[4-(benzenesulfonyl)piperazin-1-yl]-3-[5-(2,4-difluorophenyl)-1,3-oxazol-2-yl]propan-1-one into its molecular formula.
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C22H21F2N3O4S
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