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-(2-aminoethyl)-3-[(12-oxo-7-thia-9,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),9-trien-10-yl)methylsulfanyl]propanamide is given. What is its corresponding molecular formula?
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C15H20N4O2S2
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