You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[2-[2-[2-(2-isoquinolin-2-ium-2-ylethoxy)ethoxy]ethoxy]ethyl]isoquinolin-2-ium .
user
C26H30N2O3+2
assistant