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-(2,4-dimethyl-1,3-thiazol-5-yl)-1-[2-(6-fluoro-1H-benzimidazol-2-yl)piperidin-1-yl]ethanone is given. What is its corresponding molecular formula?
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C19H21FN4OS
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