You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule ethyl 6-bromo-1-cyclopropyl-5-hydroxy-4-[(4-methylpiperazin-1-yl)methyl]-2-[phenyl(propylsulfanyl)methyl]indole-3-carboxylate .
user
C30H38BrN3O3S
assistant