You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-(4-bromophenyl)-7,7-dimethyl-1-(2-piperazin-1-ylethyl)-6,8-dihydro-4H-cinnolin-5-one;hydrate;hydrochloride ?
user
C22H32BrClN4O2
assistant