You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-(1,3-benzodioxol-5-yl)piperazin-1-yl]-[(1S,2R,4S)-2-bicyclo[2.2.1]heptanyl]methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H24N2O3
assistant