You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-ethylsulfanylethyl (4R,7R)-4-(2-bromo-4,5-dimethoxyphenyl)-7-(4-chlorophenyl)-2-methyl-5-oxo-4,6,7,8-tetrahydro-1H-quinoline-3-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H31BrClNO5S
assistant