You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-(ethylcarbamoylamino)-7-propanoyl-1,3-benzothiazol-5-yl] trifluoromethanesulfonate by IUPAC nomenclature, provide its molecular formula.
user
C14H14F3N3O5S2
assistant