You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(1R)-1-[(1S)-2-[(2-fluorophenyl)methyl]-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-1-yl]propyl]-3-propan-2-ylthiourea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H34FN3O2S
assistant