You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(4-amino-1,3,3a,4,5,6,7,7a-octahydroisoindol-2-yl)-2-(3-chlorophenyl)ethanone;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H22Cl2N2O
assistant