You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 1-[3-(difluoromethoxy)phenyl]-3-[3-[4-(2-methylpropyl)-5-methylsulfanyl-1,2,4-triazol-3-yl]propyl]urea ?
user
C18H25F2N5O2S
assistant