You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-[3-(4-chlorophenyl)imidazo[1,2-a]pyrazin-6-yl]phenyl]-(4-methyl-1,4-diazepan-1-yl)methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H24ClN5O
assistant