You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[[(2S)-oxolan-2-yl]methyl]-3-(5-propan-2-yl-1,3,4-thiadiazol-2-yl)urea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C11H18N4O2S
assistant