You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 8-(1,5-dimethylquinolin-1-ium-2-yl)-2,7,9,9-tetramethylindeno[2,1-b]pyridine;2,7,9,9-tetramethyl-8-(2-methylisoquinolin-2-ium-1-yl)indeno[2,1-b]pyridine;2,7,9,9-tetramethyl-8-[1-methyl-5-(2-methylpropyl)quinolin-1-ium-2-yl]indeno[2,1-b]pyridine;2,7,9,9-tetramethyl-8-[1-methyl-7-(2-methylpropyl)quinolin-1-ium-2-yl]indeno[2,1-b]pyridine into molecular formula.
user
C113H118N8+4
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