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 2-[(4S)-4-cyclopropyl-6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl]-N-[(2-fluorophenyl)carbamoyl]acetamide ?
user
C19H20FN3O2S
assistant