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 1-ethyl-N-(1-methylcyclopropyl)-3-(5-methyl-1,3,4-oxadiazol-2-yl)-2-oxobenzimidazole-5-sulfonamide .
user
C16H19N5O4S
assistant