You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-methyl-1-naphthalen-2-yl-7-pyrazol-1-yl-3,5-dihydro-2H-1,4-benzodiazepine is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H22N4
assistant