You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,1,2,2-tetrafluoro-6-[1,1,1-trifluoro-3-oxo-2-prop-2-enoyloxy-3-(propylamino)propan-2-yl]oxyhexane-1-sulfonic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H20F7NO7S
assistant