You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-butyl-N-[3-[4-(2-ethylindolizin-1-yl)sulfonylphenoxy]propyl]butan-1-amine;propan-2-one;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H45ClN2O4S
assistant