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-[(5-chloro-1,3-benzothiazol-2-yl)methyl]-2-[(4,5-dimethyl-1,3-thiazol-2-yl)methyl]-3-ethylguanidine is given. What is its corresponding molecular formula?
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C17H20ClN5S2
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