You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-[(5-bromothiophen-2-yl)methyl]piperazin-1-yl]-4-(trifluoromethyl)pyrimidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H14BrF3N4S
assistant