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-[2-[2-[2-[3,4-bis(ethenyl)-1-[2-[1-(2-methylphenyl)isoquinolin-2-ium-2-yl]ethyl]pyridin-1-ium-2-yl]phenyl]ethyl]phenyl]-2-methylisoquinolin-2-ium is given. What is its corresponding molecular formula?
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C51H46N3+3
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