You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-methyl-4-(1-methylpyrazin-1-ium-2-yl)-[1]benzofuro[2,3-b]quinoline;8-methyl-9-(1-methylpyridin-1-ium-2-yl)-[1]benzofuro[3,2-b]quinoline;8-methyl-7-(1-methylpyridin-1-ium-2-yl)-[1]benzofuro[2,3-g]isoquinoline;8-methyl-7-(1-methylpyridin-1-ium-2-yl)-[1]benzofuro[2,3-g]quinoline;3-methyl-4-(3-methylpyrimidin-3-ium-4-yl)-[1]benzofuro[2,3-b]quinoline The above is the IUPAC name of a molecule. Write its molecular formula.
user
C108H83N12O5+5
assistant