You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
potassium;2-[3-[6-[bis[2-[bis(2-methylpropyl)amino]-2-oxoethyl]amino]hexyl]imidazol-1-ium-1-yl]-N,N-bis(2-methylpropyl)acetamide;2-(6-bromohexyl)isoindole-1,3-dione;1,6-dibromohexane;isoindol-2-ide-1,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C67H107Br3KN8O7+
assistant