You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-[2-(2-propan-2-yl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridin-1-yl)ethyl]methanesulfonamide is given. What is its corresponding molecular formula?
user
C12H22N4O2S
assistant