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-[3-[4-[2-(diethylamino)-2-oxoethyl]-1,4-diazepan-1-yl]-3-oxopropyl]thiophene-3-carboxamide ?
user
C19H30N4O3S
assistant