You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2,5-dichlorobenzenesulfonate;[1-[2-oxo-2-(pyrazin-2-ylamino)ethyl]-1-azoniabicyclo[2.2.2]octan-3-yl] 1-phenylcycloheptane-1-carboxylate .
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C33H38Cl2N4O6S
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