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 [2-(4-chloro-2-methylanilino)-2-oxoethyl] (2R)-2-[(1,1-dioxo-1,2-benzothiazol-3-ylidene)amino]propanoate is given. What is its corresponding molecular formula?
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C19H18ClN3O5S
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