You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule methane;1-methyl-3-[3-(1-methyl-2H-pyrrol-1-ium-3-yl)prop-2-enylidene]-2H-pyrrole;molecular iodine ?
user
C15H25I2N2+
assistant