You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[2-[4-[2-[3-(3-chloro-4-cyanophenoxy)-2,2,4,4-tetramethylcyclobutyl]-1-oxo-3H-isoindol-5-yl]piperazin-1-yl]ethoxy]butanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C33H41ClN4O5
assistant