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 1-[2-(1,1-dioxo-1,2-thiazolidin-2-yl)ethyl]-2-methyl-3-[(2-methylthiolan-2-yl)methyl]guanidine is given. What is its corresponding molecular formula?
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C13H26N4O2S2
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