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 8-hydroxy-6-methyl-9-[4-[(2S)-1-(methylamino)propan-2-yl]phenyl]-5H-thieno[2,3-c]quinolin-4-one ?
user
C22H22N2O2S
assistant