You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-(2,3-dihydro-1,4-benzodioxin-6-yl)-N-[(1R)-1-(4-fluorophenyl)ethyl]acetamide is given. What is its corresponding molecular formula?
user
C18H18FNO3
assistant