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-5-hydroxy-1-methyl-4-[(4-methylpiperazin-1-yl)methyl]-2-(phenylsulfanylmethyl)indole-3-carboxylate;hydrochloride .
user
C25H31BrClN3O3S
assistant