You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-(3-chlorophenoxy)-1-methyl-1,2,4-triazol-3-yl]-3-(6-methoxypyridazin-4-yl)-3-azabicyclo[3.2.1]octan-8-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H24ClN7O2
assistant