You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-cyclopropyl-8-methyl-9H-pyrrolo[1,2-a]azepin-5-yl)-4-(3-methoxypropyl)benzenesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H28N2O3S
assistant