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 (4S,5R)-5-[1-(4-bromophenyl)pyrrol-2-yl]-1-(3-methylphenyl)-4-pyridin-2-ylimidazolidine-2-thione ?
user
C25H21BrN4S
assistant