You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[(2,5-dimethylphenyl)methylsulfanyl]-1,3-thiazol-4-yl]-1-[4-(2-methoxyphenyl)piperazin-1-yl]ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H29N3O2S2
assistant