You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[3-[1-benzhydryl-5-chloro-2-[2-[(2-methoxycarbonylphenyl)methylsulfonylamino]ethyl]indol-3-yl]propyl]benzoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C42H39ClN2O6S
assistant