You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-[[(4Z)-2-[(E)-(3,3-dimethyl-1-pentylindol-2-ylidene)methyl]-3-oxo-4-[(1,3,3-trimethylindol-1-ium-2-yl)methylidene]cyclobuten-1-yl]amino]-3-[[5-[2-[2-(2,5-dioxopyrrol-1-yl)ethoxy]ethylamino]-5-oxopentyl]amino]-3-oxopropane-1-sulfonic acid is given. What is its corresponding molecular formula?
user
C48H61N6O9S+
assistant