You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[7-[(dimethylamino)methyl]-3-(phenylcarbamoylamino)-5,6,7,8-tetrahydronaphthalen-1-yl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H28N4O2
assistant