You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[5-(5-bromothiophen-2-yl)-1,3,4-oxadiazol-2-yl]methyl 4-chloro-2-fluorobenzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H7BrClFN2O3S
assistant