You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-(8-ethyl-2-methylimidazo[1,2-b]pyridazin-6-yl)-3-(1-ethylpiperidin-4-yl)-5-fluorocinnoline The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H27FN6
assistant