You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,2S)-2-(4-chlorophenyl)-1'-[[3-(4-methylsulfinylpiperazine-1-carbonyl)phenyl]methyl]spiro[cyclopropane-1,3'-indole]-2'-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H28ClN3O3S
assistant