You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-1-yl)acetamide ?
user
C18H21N3O2S
assistant