You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (3S)-N-[(2-chlorophenyl)methyl]-N-[(3S)-1,1-dioxothiolan-3-yl]-2,3-dihydro-1,4-benzodioxine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C20H20ClNO5S
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