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 N-isoquinolin-1-yl-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide is given. What is its corresponding molecular formula?
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C15H12N6O2S
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