You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,5S)-N-[[(3S)-2,3-dihydro-1,4-benzodioxin-3-yl]methyl]-9-oxobicyclo[3.3.1]nonane-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C19H23NO4
assistant