You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[4-(3-carboxypropyl)-N-[2-[4-(1,3-dioxoisoindol-2-yl)butyl-dimethylazaniumyl]ethyl]anilino]ethyl-[4-(1,3-dioxoisoindol-2-yl)butyl]-dimethylazanium .
user
C42H55N5O6+2
assistant