You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[4-(4,6-dimethyl-1,3-benzothiazol-2-yl)piperazin-1-yl]-3-phenylsulfanylpropan-1-one into molecular formula.
user
C22H25N3OS2
assistant