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 1-[(3S)-1-[2-(4-aminopiperidin-1-yl)ethyl]-3,6,7-trimethyl-3,4-dihydro-2H-quinoxalin-2-yl]-3-hydroxyurea ?
user
C19H32N6O2
assistant