You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 2-[4-(4-methoxyphenyl)-6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl]-1-[3-methyl-4-(4-nitrobenzoyl)piperazin-1-yl]ethanone ?
user
C28H30N4O5S
assistant