You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(2-methylbenzimidazol-1-yl)-N-[5-(1-phenylcyclopropyl)-1,3,4-thiadiazol-2-yl]propanamide into its molecular formula.
user
C22H21N5OS
assistant