You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-(furan-2-carbonyl)piperazin-1-yl]-[(4S)-4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridin-4-yl]methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H19N5O3
assistant