You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(6,8-dichloro-2-ethylquinazolin-4-yl)-(2-phenylethyl)amino]-1-morpholin-4-ylpropan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28Cl2N4O2
assistant