You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-butyl-4-[4-[3-(dibutylamino)propoxy]benzoyl]-N-methyl-1-benzothiophene-5-sulfonamide;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H45ClN2O4S2
assistant