You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [5,5-bis(4-methoxyphenyl)-1',1',5',5'-tetramethyl-10-(trifluoromethylsulfanyl)spiro[6-oxapentacyclo[12.7.0.02,7.08,13.015,20]henicosa-1(14),2(7),3,8(13),9,11,15,17,19-nonaene-21,3'-cyclohexane]-11-yl]methanethiol .
user
C45H43F3O3S2
assistant