You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(2-methyl-1,3-thiazol-4-yl)-1-[4-(2-phenylsulfanylethyl)piperazin-1-yl]prop-2-en-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H23N3OS2
assistant