You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 1-(4-tert-butylphenyl)-3-[(1R)-1-[4-(methanesulfonamido)-3-(2-phenylethenyl)phenyl]ethyl]urea ?
user
C28H33N3O3S
assistant