You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as S-[4-[2-[4-[2-[3-ethyl-4-(2-phenylethynyl)phenyl]ethynyl]phenyl]ethynyl]phenyl] ethanethioate using the IUPAC nomenclature.
user
C34H24OS
assistant