You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-(1,3-benzodioxol-5-yl)-5-[1-(2,4-difluorophenyl)sulfonylpiperidin-4-yl]-1,3,4-thiadiazole-2-carboxamide .
user
C21H18F2N4O5S2
assistant