You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1R,9S)-4-(2,4,6-trimethylphenyl)-8-oxa-4,5-diaza-2-azoniatetracyclo[7.7.0.02,6.011,16]hexadeca-2,5,11,13,15-pentaene;hydrochloride .
user
C21H23ClN3O+
assistant