You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-bromophenyl)-3-(9H-fluoren-9-ylmethoxycarbonyl)-1,3-thiazolidine-4-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H20BrNO4S
assistant