You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(2-chlorophenyl)phenyl]-3-[(4S,5S)-2,2-dimethyl-4-phenyl-1,3-dioxan-5-yl]urea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H25ClN2O3
assistant