You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2E)-1-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethyl]-2-[(E)-3-[1-[2-(2-methoxyethoxy)ethyl]-3-methyl-5-sulfonato-3-(3-sulfonatopropyl)indol-1-ium-2-yl]prop-2-enylidene]-3-(2-methoxyethyl)-3-methylindole-5-sulfonate into molecular formula.
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C45H59N3O19S3-2
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