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 4-[2-(cyclopropylmethylamino)cyclopropyl]-5-methyl-N-(5-methyl-1,3,4-thiadiazol-2-yl)thiophene-2-carboxamide .
user
C16H20N4OS2
assistant