You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4S)-4-[(2R)-2-(2-hydroxyethyl)piperidin-1-yl]-N-(1,2,4-thiadiazol-5-yl)-3,4-dihydro-2H-chromene-7-sulfonamide .
user
C18H24N4O4S2
assistant