You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[prop-2-enyl-[2-(trifluoromethyl)phenyl]sulfonylamino]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H19F3N2O5S
assistant