You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[[4-[bis(2-chloroethyl)amino]phenyl]methyl]-3-[2-[4-[3-(1,5,9-trimethyl-11,14,15,16-tetraoxatetracyclo[10.3.1.04,13.08,13]hexadecan-10-yl)propyl]piperazin-1-yl]acetyl]iminopropanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C39H58Cl2N4O7
assistant