You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2,3-dihydro-1-benzofuran-5-ylmethyl)-1-[(2R,3S)-2-(2-ethylpyrazol-3-yl)oxolan-3-yl]methanamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H25N3O2
assistant