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 6-amino-8-pyridin-4-yl-1,3,8,8a-tetrahydroisothiochromene-5,7,7-tricarbonitrile is given. What is its corresponding molecular formula?
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C17H13N5S
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