You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(1S)-1-(4-methylphenyl)ethyl] 2-methyl-3-oxo-2-[(2,3,4,5,6-pentafluorophenyl)sulfonyloxymethyl]butanoate ?
user
C21H19F5O6S
assistant