You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[3-[1-amino-2-(2,4,5-trifluorophenyl)ethyl]-8-azabicyclo[3.2.1]octan-8-yl]-3-methylsulfonylpropan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H25F3N2O3S
assistant