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-[5-(diethylsulfamoyl)-2-methylphenyl]-2-(3H-[1,2,4]triazolo[4,3-a]benzimidazol-1-ylsulfanyl)acetamide .
user
C21H24N6O3S2
assistant