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-[2-(6-methoxy-1,3-benzothiazol-2-yl)-5-methylpyrazol-3-yl]pyridine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C18H15N5O2S
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