You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-cyclopropyl-1-[(2,6-difluorophenyl)methyl]-3-[2-(3-methyl-1,2,4-oxadiazol-5-yl)ethyl]urea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H18F2N4O2
assistant