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-chloro-N-[3-(3-methoxyphenyl)-1,2,4-thiadiazol-5-yl]pyridine-3-carboxamide is given. What is its corresponding molecular formula?
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C15H11ClN4O2S
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