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 1-tritiosulfanylbutan-2-one;2-tritiosulfanyl-N-[[(2-tritiosulfanylacetyl)amino]methyl]acetamide is given. What is its corresponding molecular formula?
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C9H18N2O3S3
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