You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,3-dimethyl-6-(9-methyl-9-azabicyclo[3.3.1]nonan-3-yl)-4H-imidazo[4,5-c]pyrazole-5-thione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H23N5S
assistant