You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(8-chloro-4-methyl-2,3-dihydro-1H-quinolin-4-yl)-(3,6-diamino-4,5,6,7-tetrahydroindazol-2-yl)methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H22ClN5O
assistant