You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by [6-[3-[3-[4-(2,7-diphenylspiro[acridine-9,9'-fluorene]-10-yl)-6-(trimethyl-lambda4-sulfanyl)dibenzofuran-1-yl]phenyl]phenothiazin-10-yl]dibenzofuran-4-yl]-trimethylsilane ?
user
C85H64N2O2S2Si
assistant