You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [4-[4-[4-[2-acetamido-3-[4-[bis(2-chloroethyl)amino]phenyl]propanoyl]oxyphenyl]hexa-2,4-dien-3-yl]phenyl] 2-acetamido-3-[4-[bis(2-chloroethyl)amino]phenyl]propanoate ?
user
C48H54Cl4N4O6
assistant