You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2,4-dichloro-3-(3-fluoro-5-propan-2-ylphenoxy)-N-[(4-sulfamoylphenyl)methyl]benzamide into molecular formula.
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C23H21Cl2FN2O4S
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