You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(1,1,1,3,3,3-hexafluoro-2-methylpropan-2-yl)-3-(1,2,4-triazol-4-yl)urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C7H7F6N5O
assistant