You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(6-amino-1,2,3,4-tetrahydronaphthalen-1-yl)-4-oxo-4-(3-oxo-2,4-dihydroquinoxalin-1-yl)butanamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H25ClN4O3
assistant