You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,2S)-1-(5-chloropyrimidin-2-yl)-N-[4-cyclopropyl-5-(6-methoxypyridin-2-yl)-1,2,4-triazol-3-yl]-1-propoxypropane-2-sulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C21H26ClN7O4S
assistant