You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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5-[2-(1,3-benzodioxol-5-ylmethyl)-4-hydroxy-3-methyl-1,3-thiazolidin-4-yl]-2-chlorobenzenesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
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C18H19ClN2O5S2
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