You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule methyl hydrogen sulfate;2-[4-(3-methylsulfanyl-5,6-dihydrobenzo[b][1]benzothiepin-5-yl)piperazin-1-yl]ethanol into molecular formula.
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C23H34N2O9S4
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