You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[[4-[2-[3-[5-[2,6-bis(ethylcarbamoyl)pyridin-4-yl]-3,3-dimethyl-1-(3-sulfopropyl)benzo[g]indol-1-ium-2-yl]prop-2-enylidene]-3,3-dimethyl-1-propylbenzo[g]indol-5-yl]-6-(2-sulfoethylcarbamoyl)pyridine-2-carbonyl]amino]propanoic acid into molecular formula.
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C60H67N8O12S2+
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