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 3-[2-[(E)-2-[5-[(E)-2-(1-butyl-3,3-dimethylindol-1-ium-2-yl)ethenyl]-2-hydroxyphenyl]ethenyl]-3,3-dimethylindol-1-ium-1-yl]propane-1-sulfonate is given. What is its corresponding molecular formula?
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C37H43N2O4S+
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