You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (8S,8aR)-6-amino-8-(5-chlorothiophen-2-yl)-1,3,8,8a-tetrahydroisothiochromene-5,5,7-tricarbonitrile into molecular formula.
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C16H11ClN4S2
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