You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N'-[(E)-3-(5-bromothiophen-2-yl)prop-2-enoyl]-2-(4-fluorophenoxy)propanehydrazide is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H14BrFN2O3S
assistant