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'-(3-methylsulfanylbutyl)-5-methylsulfonylspiro[6,7-dihydro-1H-imidazo[4,5-c]pyridine-4,4'-piperidine] is given. What is its corresponding molecular formula?
user
C16H28N4O2S2
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