You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1,3-benzodioxol-5-ylmethyl)-3-[5-(dimethylsulfamoyl)-2-(trifluoromethyl)benzimidazol-1-yl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H21F3N4O5S
assistant