You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[4-[2-[[(2S)-2-(3-chlorophenyl)-2-hydroxyethyl]amino]ethyl]phenyl]sulfonyl-N,N-dimethylbenzamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H28Cl2N2O4S
assistant