You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[(5-benzamido-1,3,4-thiadiazol-2-yl)sulfonyl]piperazine-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H19N5O5S2
assistant