You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[ethylamino-[3-(2-oxoazepan-1-yl)propylamino]methylidene]amino]-N-(3-ethylphenyl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H35N5O2
assistant