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-(3-chlorophenyl)-2-[(8-ethyl-7-oxo-5-thia-1,8,10,11-tetrazatricyclo[7.3.0.02,6]dodeca-2(6),3,9,11-tetraen-12-yl)sulfanyl]acetamide by IUPAC nomenclature, provide its molecular formula.
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C17H14ClN5O2S2
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