You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[1-[5-(4-hydroxyphenyl)-1,3,4-thiadiazol-2-yl]piperidin-4-yl]-2-methoxyacetamide by IUPAC nomenclature, provide its molecular formula.
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C16H20N4O3S
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