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 [(2S)-2-[[(4-imidazol-1-ylpyrrolidine-2-carbonyl)amino]carbamoyl]-7-oxo-1,6-diazabicyclo[3.2.1]octan-6-yl] hydrogen sulfate is given. What is its corresponding molecular formula?
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C15H21N7O7S
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