You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl (3S)-1-[(2S)-3-(1,3-benzodioxol-5-ylmethoxy)-2-hydroxypropyl]piperidine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H27NO6
assistant