You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,1,2,2-tetrafluoro-2-[1,1,2,3,3-pentafluoro-2-(1-fluoroethenoxy)-3-(1,1,2,2-tetrafluoro-2-fluorosulfonylethoxy)propoxy]ethanesulfonyl fluoride;1,1,2,2-tetrafluoro-2-[1,1,2,3,3-pentafluoro-1-(1-fluoroethoxy)-3-(1,1,2,2-tetrafluoro-2-fluorosulfonylethoxy)propan-2-yl]oxyethanesulfonyl fluoride is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H6F32O14S4
assistant