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-(tert-butylsulfamoyl)-4-chloro-N-[2-[(2-phenylacetyl)amino]ethyl]benzamide is given. What is its corresponding molecular formula?
user
C21H26ClN3O4S
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